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Composition of Functions
Page 4
Questions (290)
Find f X g , g X f , and f X f
f(x) = 3sqrt x-1 g(x) = x^3 + 1 For f(x) the 3 is little above the sqrt sign. My answers were:
1 answer
asked by
Hannah
405 views
Find two functions f and g such that (f X g)(x) = h(x). (There are many correct answers.)
h(x) = 4 / (5x + 2)^2 = My answers
2 answers
asked by
Hannah
1,118 views
Find (a) f X g , (b) g X f, and (c) f X f
f(x) = 3sqrt x-1 g(x) = x^3 + 1 For the f(x) the 3 is little above the sqrt sign. my
1 answer
asked by
Hannah
367 views
Find two functions f and g such that (f X g)(x) = h(x). ( There are many correct answers.
My answers were f(x) = 4/5x and g(x) =
1 answer
asked by
Hannah
379 views
Suppose h(x) = 3x and k(x) = log3(x). What is k(h(x))? What about h(k(x))? Start with a few numbers to convince yourself.
4 answers
asked by
Alyssa Pacheco
334 views
1)find f(g(x))
f(x) = x^2 + 2x g(x) = 1/x x^3 + 2x Is this correct? 2) solve: 3^x-1 = 10 ln 3/ ln 10 = .264 Is this correct? I am
1 answer
asked by
Hannah
397 views
If f(x) + log 2 (subscript 2) and g(x) = 2x (squared) + 14, determine the value of (f o g)(5)
3 answers
asked by
Sonia
346 views
when f(x)=x^2 and g(x)=x-3 what is f(g(x))and how do you do it?
1 answer
asked by
anonymous
268 views
when f(x)=x^2 and g(x)=x-3 what is f(g(x))and how do you do it?
1 answer
asked by
anonymous
224 views
The functions f and g are defined by:
f:x 3x+1 g:x 9-x Determine an expression for the function gf(x) 3(9-x)+1 27-3x+1
3 answers
asked by
Keisha
965 views
if g(x) = 2x+1 find g[g(x)]
1 answer
asked by
misty
249 views
Find (fog)(x)and (gof)(x)if f(x)=x-x^2 and g(x)= 2x+3.
Okay so I did the following: For f(of)g(x), take (2x+3) - (2x+3)^2 (insert
3 answers
asked by
Shawn
368 views
Find (fog)(x)and (gof)(x)if f(x)=x-x^2 and g(x)= 2x+3.
2 answers
asked by
Shawn
490 views
If f(x)=-4x^2 and g(x)=2/x, find [g*f](x).
answer I got: [g*f](x)=g(f(x)) =g(2/-4x)^2 Is this right?
3 answers
asked by
Mary
280 views
Given the functions:
f(x) = x^2 - 1, g(x) = x/x + 2 Why is the followig the equation of (g o f)(x) THe answer is x^2 - 1 / x^2 +
1 answer
asked by
Erika
387 views
If:
f(x)= radical x g(x)= x^2+1 What is the domain of f o g? I don't really understand how to answer this question.
3 answers
asked by
Crystal
398 views
I don't understand this question at all.
If f(x) = 4x - 3 and h(x) = 4x^2 - 21, find a function g such that f ͦ g = h.
1 answer
asked by
Lucy
339 views
If f(x)=x^2+1 and g(x)=1/x, find [f o g](x)
I need a little help in getting started. Please and Thank you.
2 answers
asked by
Anonymous
754 views
Can you check my calculations please
g maps points (0,0),(1,0),(0,1) to (6,-2),(6,-1),(5,-2) So, g(x) = (0 -1) .....(6)
1 answer
asked by
Anonymous
336 views
I have solved parts of the question, but I want to know if they are correct. Other parts I'm not sure how to do, like part b and
1 answer
asked by
Jane
1,068 views
If f(x) = x-3 g(x) = 2x+5 find fog and gof
3 answers
asked by
Spenser
427 views
How do I find f(g(x)) when there is a radical?
1 answer
asked by
Courtney
325 views
I have no idea how to do this question:
Write two functions f(x) and g(x) for which (f*g)(x)= 2x²+11x-6. Tell how you determined
4 answers
asked by
Sinead
348 views
Can you please check my answers?
For the given functions f and g, find the indicated composition. 5. f(x)=7x+9, g(x)=2x-1 I got
1 answer
asked by
Soly
389 views
If f(2x) = 2/2+x for all x > 0, then what is 2f(x)?
1 answer
asked by
Mystic
11 views
lET F(X) = 5X^2 - 5. wHAT IS F(F(X))
1 answer
asked by
Mystic
10 views
Suppose that the functions p and q are defined as follows.
p (x) = -x 2 q (x) = -2x +2 Find the following. (p×q)(-5) (q ×p)(-5)
3 answers
asked by
Melussa
2,633 views
If f(x)=x62 and g(x)= sqrt x-3 find fog and its domain.
4 answers
asked by
Jeromino
1,806 views
Hi there, I need help with composition of functions.
I need to find fog, gof, gog, and fof and their domains for the following:
4 answers
asked by
Lola
1,636 views
Suppose that the functions q and r are defined as follows:
q(x)=2x+1 r(x)=-2x^2+1 Find the following: (qOr)(4)= (rOq)(4)=
4 answers
asked by
Jen
1,359 views
Write as an algebraic expression in u.
Tan(cos^-1 u)
4 answers
asked by
ALISON
1,077 views
1.Let f(x)= x^2 - 5 and g(x)= 3x^2. Find g(f(x)).
2. Let f(x)= x^2 - 4 and g(x) -3x^2. Find f(g(x)).
5 answers
asked by
Neil
1,017 views
Express the function in the form f o g.
G(x)= The cube root of (x/1+x) So, (f 0 g)(x)= f(g(x))= f(cube root of x/1+x)= I don't
2 answers
asked by
Chelsea
914 views
what is g(f(x))? and f(g(x))?
if f(x)=(1)/(sqaure root3x) and g(x)=x^2-5 Thanks!
2 answers
asked by
Jack
864 views
f(x) = 2x-8 and g(x) = sqrt x-5 find (fog)(30)
2 answers
asked by
aurora
835 views
If f and g are functions defined for all real numbers, and f is an odd function,
then f ∘ g is also an odd function. Justify. I
3 answers
asked by
Alex
864 views
1. For f(x) = (1-x)/(1+x) and g(x) = x/(1-x), find the simplified form for f[g(x)] and state the domain?
2. Evaluate lim x -->1
2 answers
asked by
Dante
831 views
Please diregard the other one the square root sign did not come out right.
find the complete function f o g f(x)=x^2+1;g(x)=
4 answers
asked by
ladybug
407 views
(a) In order to express the function y = 1010 x + 4, as a composition of two functions the outer of which is an exponential
2 answers
asked by
Alicia
785 views
If f(x)=sin(x) and g(x)=x^2-x+1, find the domain of f(g(x)) and g(f(x)).
I was able to determine that: f(g(x))= sin(x^2-x+1) and
2 answers
asked by
Sarah
733 views
1.) f(x) = 3x - 7 and g(x) = -2x - 6. Find (f ° g)(4)
2.) What is the inverse of the given relation? y = 3x + 12 3.) Rewrite ^3
4 answers
asked by
|-/
718 views
f(x) = 2x+4 and g(x)= x2-1
find (f * g)(4) find (g * f)(x) find f^(-1)(x)
1 answer
asked by
serena
675 views
If f(x) and g(x) are two functions defined by f(x) = �ã(x + 1), g(x) = | x - 1 |, then what is the value of f(g(9))?
3 answers
asked by
Sean
694 views
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
1 answer
asked by
Julia
684 views
consider the function f(x)=1-ln(x). Write the expression of (fof)(x) and find the domain of fof.
2 answers
asked by
rainbow
607 views
1. For f(x) = (1-x)/(1+x) and g(x) = x/(1-x), find the simplified form for f[g(x)] and state the domain?
2. Evaluate lim x -->1
1 answer
asked by
Dante
562 views
let f: ℤ→ ℤ and g: ℤ → ℤ be functions defined by f(x) = 3x + 1 and g(x) = |_x/2_|.
(a) Is f o g one-to-one? prove (b)
3 answers
asked by
Anonymous
558 views
Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20
where T is the temperature
2 answers
asked by
Anonymous
554 views
Give am example of a function f.N N with the property that there exists a function g. N N such that the composition got is the
2 answers
asked by
geeta
534 views
Let f(x)= 2x^2, g(x)= 5x-6, and m(x)= 3x. Find and simplify the composite function g(m(f(x))).
3 answers
asked by
Ariel
511 views
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Parent Categories (19)
Algebra
Algebraic Functions
Calculus or Algebra
Domain and Range
Equations
Exponential Functions
Functions
Functions and Composition
Functions and Equations
Functions and Graphs
Functions and Relations
Functions and Their Inverses
Functions, Sub-sub-category: Composition of Functions
Inverse Trigonometric Functions
Linear Transformations
Math Equations or Algebraic Functions
Mathematical Operations
Operations and Functions
Trigonometry