Friday

August 22, 2014

August 22, 2014

Number of results: 99,037

**Math - Domain of Composite function**

Find the domain of the composite function f ₒ g . Please show all of your work. f(x) = √x; g(x) = 2x + 12
*June 3, 2011 by CheezyReezy*

**Math - Domain of Composite**

Find the domain of the composite function . Please show all of your work. f(x) = sqrt(x); g(x) = 2x + 12
*June 5, 2011 by Armando*

**Domain of composite function**

Can you please help me with the following questions? Find the domain of the composite function f * g. 12. f(x)=x+3, g(x)=1/(x+7) 15. f(x)=7x+70, g(x)=x+2
*September 14, 2007 by Soly*

**Domain of composite function**

Find the domain of the composite function fog. f(x)=x^2+3;g(x)=sqrtx-4
*April 2, 2013 by Alley*

**college algebra**

Let f(x) = square root (x + 2) and g(x) = x^2 − 2. Determine the domain of the composite function. (Enter your answer using interval notation.) f compose f ______? & Find the composite function. (f compose f)(x) = _____?
*October 21, 2013 by Dee*

**math**

find the domain of the composite function fog. f(x)=x/x-2;g(x)=-8/x a. domain of fog is {x/?} b. the domain of fog is all real numbers
*January 3, 2013 by Kelli*

**college algebra**

Let f(x) = 1/x − 2 and g(x) = 1/x − 3 . Determine the domain of the composite function. (Enter your answer using interval notation.) g compose f _____? & Find the composite function. (g compose f)(x) = _____?
*October 21, 2013 by Dee*

**composite functions**

f(x)=2x-4, g(x)=x squared + 5x What is F o G and Domain Okay, we are given f and g as functions of x. To compose a function means to use one function, g in this case, as the argument of the other, f in this case. Thus we want f o g = f(g(x)) With f(x) = 2x-4 and g(x) = x^2 + ...
*July 6, 2006 by Anonymous*

**math**

Find the domain of the composite function f of g. f(x)=3/x-6; g(x)= 1/x please help and show the work as well.
*August 28, 2012 by Bree*

**math**

find the domain of composite function fog f(x)=x/x-4; g(x)= -1/x please show work
*January 8, 2013 by anonymous*

**Functions**

consider the functions g(x)=(4-x^2)^0.5 and h(x)=(x^2)-5. find the composite functions hog(x) and goh(x), if they exist, and state the domain and range of the composite functions. ------------------------------ ok, i have figured out that hog(x)=-1-X^2, but in my answer ...
*May 17, 2008 by Ann*

**ADVANCED FUNCTIONS**

What is the domain of the composite function of f(x)=x^2 and g(x)=sin x when (g o f)(x) and (f o g)(x)?? when i joined the two function it looks the same to me..
*June 10, 2013 by Anonymous*

**algebra 2!**

Given f(X)=the square root of x-2 and g(x_=6/x-3 (+1), write the composite function g(f(x)) and state its domain. Where is the resulting function defined?
*May 5, 2011 by audrey*

**algebra**

find the domain of the composite function f of g. f(x)=x^2+9;g(x)=x-7
*September 2, 2012 by alli*

**Algebra- ASAP**

Could you please help me and check my answers? Find the domain of the function. f(x)=-8x-2 -I got the domain being (negative infinity, postive infinity). g(x)= 3x/(x^2 -49) (I got (-inifinity,-7)U (-7,7) U (7, +ininfinity) The U is the union symbol. Find the domain of the ...
*September 16, 2007 by Soly*

**college algebra**

Let f(x) = x + 2 and g(x) = x2 − 2. Determine the domain of the composite function.
*October 21, 2013 by Dee*

**college algebra**

1.for the given function f&g, find the following and state the domain of each result. f(x)=2x+1/9x-5; g(x) 4x/9x-5 a.(f+g)(x)=? What is the domain? b. (f/g)(x)=? what is the domain? 2.the function f is defined as follows {x+6 if -5 x<1 f(x)={9 if x=1 {-x+4 if x>1 a. ...
*December 1, 2012 by cnfused-steve please*

**Functions**

Could you please help me and check my answers? Find the domain of the function. f(x)=-8x-2 -I got the domain being (negative infinity, postive infinity). g(x)= 3x/x^2 -49 (I got (-inifinity,-7)U (-7,7) U (7, +ininfinity) The U is the union symbol. Find the domain of the ...
*September 15, 2007 by Soly*

**college algebra, Please help!!**

find the domain of the composite function of fog f(x)=x^2+8;g(x)x-5
*November 30, 2012 by confused*

**alg**

find the domain of the composite function f of g. f(x)=x^2+9;g(x)=sqrtx-7 please show work
*September 2, 2012 by alli*

**calcius**

Determine whether the relation represents a function. If it is a function, state the domain and range. {(-2, 1), (-1, -2), (0, -3), (1, -2), (3, 6)} a. function domain: {-2, -1, 0, 1, 3} range: {1, -2, -3, 6} b. function domain: {1, -2, -3, 6} range: {-2, -1, 0, 1, 3} c. not a...
*June 9, 2008 by rachel*

**College Algebra**

1. Find the domain of the composite function f o g. f(x)= 2/x-3; g(x)= 7/x 2. Solve the following exponential equation. Exact answers only. 2^1-9x = e^2x
*August 14, 2012 by Kameesha*

**college algebra--I really need help!!**

Find the domain of the composite function FOG f(x)= 2/x-3; g(x)= 7/x please show work so I can undestand
*November 25, 2012 by Ladybug*

**calculus**

Suppose that f(x)= square root of x and g(x)= 3x-4 and you are asked to evaluvate the composite function f(g(0)). What is the complication that occurs in trying to find that composite function value? For waht values of x is it possible to evauvate f(g(x))? Please help me with ...
*February 3, 2011 by Pauline*

**urgent urgent algebra**

find the composite function fog f(X) = 1/X-5,g(x)-6/x question 2 find inverse, domain range and asymatotes of each function f(x)=3+e^4-x can some one help me please been stuck on these for 2 days need help solving thank you
*March 19, 2013 by zachary*

**college algebra--need help please!!**

find the domain of the composite function fog. f(x)= 2/x-3; g(x)= 7/x please show all work.
*November 24, 2012 by Heather*

**algebra**

2. The function f is defined as follows f(x)={4+2x if x<0 {x^2 if x>0 a) Find the domain of the function b) Locate any intercepts c) Graph function d) Based on graph find range e) Is f continuous on its domain? a) The domain of the function f is
*May 24, 2013 by sharday*

**Algebra**

Let f(x) = 6/x-1 and g(x) = 1+3/x. Please fing the composite function. This is what i got so far. =f (1+3/x) =6/x-1 = =f (1+3/x) = 6/ [1+3/x - 1] How do I get the composite?
*June 24, 2009 by Stacy*

**math (2nd Try)**

You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range are reasonable for the function? These are my options: domain: 1<s<6 Range: 24&...
*May 11, 2012 by Jane*

**Math**

You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range are reasonable for the function? These are my options: domain: 1<s<6 Range: 24&...
*May 10, 2012 by Jane*

**algebra**

Find the domain and range of the relation and determine whether it is a function? Answers are Domain x>1 range y>0yes it is a function Domain all real numbers,range all real numbers yes it is a function Domain positive integers, range positive integers no it is not a ...
*March 12, 2014 by snow*

**functions**

For each problem, construct two composite functions, . Evaluate each composite function for x=2 ok i have not dealt with composite functions can I please get some help with this as I have 20 questions to do can someone show me step by step on how to properly solve this ...
*October 18, 2013 by Johnathan*

**Trigonometry**

In this problem, you will describe in detail how we arrive at the accepted definition of the function y= Arccsc(x) a) Sketch the cosecant function over the interval (-2pi, 2pi) i can do that b) This function is not one to one - please explain in detail the meaning of this ??? ...
*May 12, 2010 by Jake*

**algebra**

1 (a) A function passes through the points (0, -5), (1, 0), (2, 7). Use finite differences to determine the equation of the function. (b) Draw the graph of the function. (c) Draw the inverse on the graph. (d) Show at least two different restrictions to the domain that could be...
*June 4, 2008 by Wafi*

**Calculus**

Explain, using the theorems, why the function is continuous at every number in its domain. F(x)= 2x^2-x-3 / x^2 +9 A) F(x) is a polynomial, so it is continuous at every number in its domain. B) F(x) is a rational function, so it is continuous at every number in its domain. C) ...
*February 5, 2013 by Maura*

**algebra functions**

can someone please check my answer For each problem, construct two composite functions, . Evaluate each composite function for x=2 f(x)=3x g(x)=1/x f(g)*(x)=3x(1)/x x=2 3x(1)/x=6 g(f)*(x)=(3x)=2*3x=6 x=2 3*(2)=6*6=36
*October 17, 2013 by tani*

**algebra functions check my answer**

For each problem, construct two composite functions, . Evaluate each composite function for x=2 f(x)=3x g(x)=1/x f(g)*(x)=3x(1)/x x=2 3x(1)/x=6 g(f)*(x)=(3x)=2*3x=6 x=2 3*(2)=6*6=36
*October 17, 2013 by tani*

**math**

how to you find a composite function form of y in this problem? y = 1/[(x^2+3x-5)^3] I dont understand your question. Composite functions require two functions. You listed one. Please amplify. That's what I thought at first. But I am thinking I might need to substitute y in ...
*June 19, 2006 by greg*

**Function Notation**

Ive been shown that a function can be written like so f:X->Y,f(x)=rule where X is the Domain and Y, the co-domain. Firstly, what is the co-domain? Ive tried looking it up but all I get is "the set of which y values fall in". If that is the case, say for the function, y=1/(x...
*April 16, 2008 by Mikal*

**math**

how would this equation look: y=f(x+3) when y=f(x)= x^2 would it look like so.... x^2(x+3) adam, there's a slight problem with your notation in the expression y = f(x+3). Ordinarily we wouldn't put an expression in place of a variable, unless we were making what is termed a ...
*July 6, 2006 by adam*

**Algebra**

Given the following function rules and domains, find the associated ranges. (a) f(x) = 2x +3, Domain = {0, 1, 2} (b) f(x) = 0, Domain = {0, 1, 2} (c) f(x) = 2x + x2, Domain = {1, 0, 2}
*January 11, 2010 by Jeff*

**Math**

Find the requested function and state its domain: f(x)= 4x+3 g(x)=4x-5 Find f/g and its domain. So I did 4x+3/4x-5, so the 4x's cancel out and 3/-5 is left. So my answer is 3/-5. Is this correct Now I just need to find the domain which I am not to sure about.
*October 7, 2010 by Hannah*

**Math**

Find the requested function and state its domain: f(x)= 4x+3 g(x)=4x-5 Find f/g and its domain. So I did 4x+3/4x-5, so the 4x's cancel out and 3/-5 is left. So my answer is 3/-5. Is this correct Now I just need to find the domain which I am not to sure about.
*October 7, 2010 by Hannah*

**Algebra (Last Question)**

I have - to graph each relation - decide if it is a function - state the domain and the range. 1) {(2,3),(4,-3),(5,1),(-1,3)} how would I decide if something is a function in general? I kind of remember the domain and the range,but since I did this 2 years ago I forgot. Is the...
*August 31, 2010 by Amy~*

**math111(3)**

The function f(x)=(x+6)^2 is not one-to-one. Choose the largest possible domain containing the number 0 so that f(x) restricted to this domain is one-to-one. The largest possible domain is [-6,infinity) If the restriction function is written F, then inverse function F^{-1}(y)=...
*October 27, 2010 by Jessica*

**Algebra Check**

What is the domain of the function below? ((0,2),(3,1) (5,2) (8,4)) a. (1,2,4) b. (0,3,5,8)** c. (0,1,2,3,4,5,8) d. ((0,2),(3,1) (5,2) (8,4)) Is the following relation a function? ((0.3,0.6), (0.4,0.8), (0.3,0.7), (0.5,0.5)) a. yes b. no** c. cannot be determined What is the ...
*November 11, 2013 by Anonymous*

**Math(Help!!)**

What is the domain? Use a graphing utility to determine the intervals in which the function is increasing and decreasing and approximate any relative maximum or minimun values of the function. g(x) = 12 Ln x / x My answer was: Domain = (12,0) decreasing = (3,-2) and increasing...
*March 29, 2010 by Mark*

**Math**

What is the domain? Use a graphing utility to determine the intervals in which the function is increasing and decreasing and approximate any relative maximum or minimun values of the function. g(x) = 12 Ln x / x My answer was: Domain = (12,0) decreasing = (3,-2) and increasing...
*March 29, 2010 by Mark*

**Math**

I have to find the domain and range for the composite of functions G(x)=sinx and h(x)=x^2-x+1. I'm confused about this and would really appreciate some help. Thanks.
*September 24, 2010 by Sarah*

**Math(Please help)**

What is the domain? Use a graphing utility to determine the intervals in which the function is increasing and decreasing and approximate any relative maximum or minimun values of the function. g(x) = 12 Ln x / x My answer was: Domain = (12,0) decreasing = (3,-2) and ...
*March 30, 2010 by Mark*

**Algebra**

Find the domain of each square root function. Then use the domain to match the radical function with its graph. The graphs are labeled (a) through (f) and are shown in [-10,10,1] by [-10,10,1] viewing rectangles. f(x)=~(8-2x) a) b) c) d) e) f)
*June 10, 2009 by Debra*

**math**

determine the domain of the function y=log(subscript/little x)(8-x) so x^y = 8-x how do I find the domain?
*March 15, 2009 by sh*

**Math**

Find the domain of the function g(x)= 1/6-5x I know that x is a real number but I need the domain please.
*May 27, 2010 by Matt*

**College Alegbra**

A new store opens in New York. You received a coupon for $5.00 off a pair of jeans j(x) = x-5. When you get to the store you learn that they are giving a 25% discount d(x)=.75x a) Write a composite function for the cost of the jeans if the 25% discount is applied after the $5....
*June 19, 2014 by Sheniqua*

**Math**

how would i go about finding the domain of the function f(x)=(3x+1)/(sqrt(x^2+x-2)) and both the domain and range of g(x)=(5x-3)/(2x+1)
*August 7, 2008 by brian*

**Math(Please check)**

Find the domain of the following rational function. R(x) = -3x^2 / x^2 + 2x - 48 (x+8)(x-6) So the domain is x cannot be 8 or -6. Am I correct?
*November 4, 2010 by Hannah*

**Math(Please check)**

Find the domain of the following rational function. R(x) = -3x^2 / x^2 + 2x - 48 (x+8)(x-6) So domain is x cannot be 8 or -6. Am I correct?
*November 4, 2010 by Hannah*

**math**

questions involving domain and range... 1. Find the domain of the function f(x)=(3x+1)/(sqrt of (x^2+x-2)) andd. 2. Let f(x)= (absvalue(x))/x. Show that f(x)={ 1, x > 0 {-1, x < 0 Find the domain and range of f(x).
*August 4, 2008 by alk*

**precalculus check immediately**

suppoe f is a function with domain [1,3]and range[2,5]? define functions g and h by g(x)=3f(x)and h(x)=f(4x) what is domain and range of g what is domain and range of h I solved it and got it like this domainof g=[1,3]and range of g=[3,9] Domain of h=[4,12] and range of h=[2,5...
*September 24, 2012 by fatima*

**math**

Find all numbers that are not in the domain of the function. Then give the domain using set notation? F(x)=________17over xSquare+4x-12
*April 13, 2014 by jorge*

**math**

Find the domain of the function p(x)=2(pie2) -2x+9 What is the domain of p?
*May 27, 2010 by Matt*

**Math**

Express the volume of a sphere as a function of its radius. What is the domain of this function? Does this function have an inverse? If so what is it?
*February 15, 2011 by steve plz help reply*

**calculus**

You are given the following function. f(x)= (8+x)/(1-8x) (a) Find the derivative of the function using the definition of derivative. (b) Give the domain of the function. c) Give the domain of derivative of function?
*February 28, 2010 by isha*

**math**

Now, think of a set of domain and range from your own life. Write a paragraph on whether you think your particular domain and range is or is not a function and why. I need a life a example? is it a function?
*January 18, 2012 by sylvia*

**Math**

what is the domain of this function how did you find the domain. f(x)=(2x-3)/(x+9)
*July 17, 2012 by chchch*

**Alegbra**

I've learned that the difference between domain and range is.....domain is the set of possible X values and range is the set of possible Y values. also, a domain is the values that a function maps "from" and the range is the values that a function maps "to" I am having ...
*March 18, 2008 by greatdanelola*

**Math (calc)**

Given the function: f(x)=x^3(x-2)^2 , on the interval [-1,3] find the domain and Asymptotes ...Isn't the domain (-1<x<3) ? and as for the asymptotes I thought you could only find them for rational functions and since that function is not rational I guess there aren't any...
*November 7, 2009 by Elizabeth*

**algebra functions**

construct two composite functions, Evaluate each composite function for x=2. i do not fully understand functions yet can someone explain and show me what to do step by step f(x)=x+1 g(x)=x-2
*October 16, 2013 by tani*

**MATH Graphing Domain**

Consider the linear function with equation y = 3x + 5. Sketch the graph of the linear function on the grid. h t t p : //img402 . imageshack . us/img402/1466/picture38c . j p g Here is a picture of the graph, and this is how I did it. h t t p : //img9 . imageshack . us/img9/...
*September 13, 2011 by Anonymous*

**college trig**

I need to find the domain of the following function: y=arcsin((x-3)/(2x+1)) My math is a bit rusty after holidays...This is what I did: (I'll use <> for the sign of 'not equal') -> 2x+1<>0 <=> 2x<>-1 <=> x <> -1/2 But i'm not sure about ...
*October 4, 2010 by Jim*

**Pre-calculus**

Given the following values for f(t): t : f(t) 3 : -7 6 : 6 9 : 19 12 : 6 15 : -7 18 : 6 a) What is the period, frequency, midline, amplitude, maximum, and minimum? b)Find a possible formula for f(t) c)Find the domain and range of f(t) d)Find a formula for an inverse function ...
*March 26, 2009 by Elle*

**Math**

Let f(x)= 2x^2, g(x)= 5x-6, and m(x)= 3x. Find and simplify the composite function g(m(f(x))).
*April 19, 2012 by Ariel*

**math**

The function g(x)= x/453.6 converts x grams to pounds, as shown. Which composite function expresses the number of pounds that can be lifted by a balloon containing x ft3 of air?
*April 7, 2013 by Anonymous*

**Math Graphing**

Consider the linear function with equation y = 3x + 5. Sketch the graph of the linear function on the grid. h t t p : //img402 . imageshack . us/img402/1466/picture38c . j p g Here is a picture of the graph, and this is how I did it. h t t p : //img9 . imageshack . us/img9/...
*September 13, 2011 by Anonymous*

**math**

You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range are reasonable for the function? (I know that you get 144 cookies from 6 cups of ...
*April 12, 2012 by Jane*

**Math**

You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range are reasonable for the function? (I know that you get 144 cookies from 6 cups of ...
*April 12, 2012 by Jane*

**math**

You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range are reasonable for the function? (I know that you get 144 cookies from 6 cups of ...
*April 13, 2012 by Jane*

**math**

. Given the following function, f(x)=-x^2 -8x find: (a) vertex, (b) axis of symmetry, (c) intercepts, (d) domain, (e) range, (f) intervals where the function is increasing, (g) intervals where the function is decreasing, and (h) the graph of the function. Please show all of ...
*November 10, 2011 by mz tee*

**algebra functions**

can someone help me with this and explain it to me step by step so i can try to solve the remaining problems i have I have no idea of what I am supposed to do For each problem, construct two composite functions, . Evaluate each composite function for x=2. f(x)=x^2: g(x)=x-1/x
*October 16, 2013 by Ricki*

**algebra**

Determine whether the following relation represents a function. If the relation is a function then state domain and range? {(-1,-6),(2,-6),(3,-6),(4,-6)} Does the given relation represents a function? What is domain?
*May 22, 2013 by Sharday*

**math**

A function f(x) has domain [0,25), range (-∞,5], and intercepts (2,0), i(17,0), 0,9). A function h(x) has domain (-∞,16), range (-∞,42) and intercepts (3,0), (0,-10). Find the domain of each of the following. 1. f + h 2 f/g 3. f*g
*September 26, 2013 by Rin*

**college algebra**

for the given function f&g, find the following and state the domain of each result f(x)=2x+1/9x-5; g(x)4x/9x-5 a.(f+g)(x)= what is the domain? b.(f/g)(x)= what is the domain? please show work answer the following for the given quadratic function f(x)=x^2+10x-11 a. what is the ...
*December 1, 2012 by spazed out*

**calculus--please help!!**

given the following piecewise function F(x)={x+11 for -9x<-3 2 for -3x2 2x-6 for 2<x5 {--this symbol is to be around all three of the lines. Find: a. the domain b. the range c. the intercepts d. if f continious on its domain. If not, state where f is ...
*December 10, 2012 by Heather*

**Calculus. I need help!**

Write the composite function in the form f(g(x)). [Identify the inner function u=g(x) and the outer function y=f(u).] Then find the derivative dy/dx. y=√sinx √ is square root.
*February 25, 2012 by danny*

**precalc**

1. Write an equation of the following using the particular function. 1. The function is sine. The amp is 2 and the domain is [0, 2]. I got y=2sin(pie(x)) but i plugged that in my calc and it doesnt look like the graph on my worksheet 2. The function is cosine. The amp is 3 and...
*January 24, 2013 by Rebekah*

** 11th grade maths**

A.give an example of a function whose domain is {3,4,7,9}? and whose range is {-1,0,3} B.Find two different functions whose domain is {3,8}and whose range is {-4,1} C Explain why there does not exist a function whose domain is {-1,0,3} and whose range is [3,4,7,9} D.Give an ...
*September 17, 2012 by fatima*

**calculus**

Find the derivative of the function using the definition of derivative. g(t)= 9/sqrt(t) g'(t)= state the domain of the function and the domain of the derivative (use interval notation)
*September 19, 2012 by maura urgent!!*

**Math quick question**

"If f = {(-2,-1), (-1,2), (0,6), (1,3), (2,-1), (3,-5), (4,0), (5,8)} and g = {(-2,6), (-1,5), (0,-8), (1,3), (2,9), (3,9), (4,0), (5,-2)}, then find f composite g and g composite f."
*January 19, 2013 by Anonymous*

**math**

my domain is 1,2,3,4,5,6 and my range is 180,165,150,135,120,105, the domain is increasing by 1 and the range is decreasing by 15 but I do not know how to write the function
*August 23, 2013 by robert*

**Algebra**

When Let f (x) = x^2 3x + 8 and g(x) = x 5 Find Find the composite function of (fg)(x) and simplify Find (fg)(2) Find the composite function (gf)(x)
*June 17, 2009 by Robert*

**math/calculus**

let f(x)=ln(x)x>0 let k(x)= f(g(x)) and m(x)= f(g(x)) a) Find the domain of the function K(x). b) Find the domain of the function M(x). c) Find the value of k'(5)
*January 2, 2012 by angie*

**calculus**

given the following piecewise function x+11 for -9<=x<-3 y= { 2 for -3<=x<=2 2x-6 for 2<x<=5 a. find the domain b. find the range c. find the intercepts d. is f continuos on its domain. If not, state where f is discontinious e. graph the function This symbol...
*December 12, 2012 by confused--please help*

**math**

The application of one function followed by the application of a second function to the result of the first as in F^-1(f(x)) is called composition of functions. The two functions need not be inverse of each other. In a diagram, the output of one function is f(x) is used as the...
*February 10, 2013 by Julia*

**Math 3**

Find the inverse of the function f(x) = 5 e^(x-1). Determine the domain, range, and asymptotes of the function and its inverse function. Please show all of your work.
*June 9, 2011 by Allison - Carson*

**Math - 2nd try**

Please show me how to set up and solve: You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range is reasonable for the function? math - ...
*April 18, 2012 by Jane*

**Algebra**

Let f(x) = x^2 3x + 8 and g(x) = x 5 (a) Find the sum (f + g)(x) and simplify the results. (b) Find the composite function (f g)(x) and simplify the results. (c) Find (f g)(2) Show some work. (d) Find the composite function of (g f)(x) and simplify the results.
*June 17, 2009 by Carmin*

**Pre-Calc**

Suppose that f has a domain of A and g has a domain of B. (a). What is the domain of f + g? (b). What is the domain of fg? (c). What is the domain of f/g? Is there a mathematical rule or theorem for this type of question?
*August 14, 2013 by Stockton*

**math**

A movie theater seats 500 people. For any particular show, the amount of money the theater makes is a function m(n) of the number of people, n, in attendance. If a ticket costs 2 dollars, find the domain and range of this function. domain: ?≤ n ≤? range: ?≤ m...
*September 3, 2011 by sara*

**math**

i need help with the domain and range of a step function. the equation is f(x)= 59.99 + .29m thanks What is the m in the function?
*December 18, 2006 by mat*

**Math**

Express the volume of a sphere as a function of its radius. What is the domain of this function?
*February 15, 2011 by steve I Truly Need Help*

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