Monday

July 25, 2016
Number of results: 35,007

**Calculus, check my answers, please! 3**

Did I get these practice questions right? 1. Suppose that f is an even function whose domain is the set of all real numbers. Then which of the following can we claim to be true? ***The function f has an inverse f 1 that is even. The function f has an inverse f 1, but we can'...
*October 2, 2013 by Samantha*

**computing maths**

Determine whether the relation R on the set of all real numbers is reflexive, symmetric or transitive? where (x,y) is an element of R Explain why and why not by proving and giving examples. (a) x=1 (b) xy ≥ 0 (c) x-y is a rational number (d)x+y = 0 I need help urgently...
*June 16, 2013 by janice123*

**calculus**

determine whether 9x-y+16 equals 13 49 y as a function of x
*August 1, 2011 by Naomi*

**Precalc**

Consider the function f(x)=2x^3 +1. Determine whether the inverse of F is a function. Find the inverse.
*August 26, 2015 by Johni*

**Algebra2**

Complete parts a c for each quadratic function: a. Find the y-intercept, the equation of the axis of symmetry and the x- coordinate of the vertex. b. Make a table of values that includes the vertex. c. Use this information to graph the function. 1. f(x) = 2x^2 2. f(x) = x^2...
*February 8, 2008 by Mara*

**pre-calculus**

Determine whether y is a function of x: x^2y-x^2+4y=0 Please help. Thanks.
*September 13, 2008 by Gina*

**Algebra**

Determine whether the equation defines y as a function of x. y= -16
*July 12, 2013 by tony*

**Algebra**

Determine whether the equation defines y as a function of x. y=-17
*July 15, 2013 by tony*

**Calculus**

For the function below, determine the intervals of concavity: f(x)=xlnx I tried doing it but the second derivative would always be f''(x)=1/x, so it would be concave up at x>0 and concave down at x<0, which is wrong. Also, for the function below, determine the intervals ...
*January 10, 2016 by Isabella*

**~*~Algebra!*~**

How do you use possible symmetry to determine whether the graph is the graph of an even function, an odd function, of a function that is neither even or odd?
*September 1, 2007 by Nickie*

**Discreet Mathematics**

Part I: Suppose you are developing a statistical database in which information about professional football teams and records are stored. Consider the following 2 sets of data that list football teams and quarterbacks: D = {Jets, Giants, Cowboys, 49ers, Patriots, Rams, Chiefs...
*October 20, 2012 by Chuck*

**Algebra**

Determine whether each function is odd, even or neither. a) f(x) = -6x^5+2x^3 b) f(x) = x^4-x^2+1
*June 21, 2013 by AZ*

**algebra**

The function f is even and the function g is odd. Determine whether the function h(x)= f(x)/g(x) is even or, odd or neither.
*December 7, 2007 by danny*

**Algebra-please check my work**

check my answers please. Use the Intermediate Value Theorem to determine whether the polynomial function has a real zero between the given integers. f(x) = 2x3 + 10x2 - 8x - 5; between 1 and 2 -I got: f(1)=1 and f(2)=35;no Determine the maximum possible number of turning ...
*October 15, 2007 by emma*

**algebra**

How can you tell whether a function is rational or not? And how do you determine holes of a graph? Thanks!
*January 22, 2009 by Derek*

**math**

Determine whether the graph of each function is symmetric with respect to the origin. F(X)=-12/x
*March 9, 2011 by emily*

**calculus**

Determine whether the given function is continuous. If it is not, identify where it is discontinuous.
*February 13, 2012 by Anonymous*

**pre calculus**

determine whether the equation defines y as a function of x. √x + y = 12
*April 8, 2014 by Danielle*

**pre cal**

Determine algebraically whether the function is even, odd, or neither even nor odd. f as a function of x is equal to 14 times the cube root of x
*June 23, 2014 by Jorgeeee*

**Algebra answer for checking**

relation or function? x^2 = 1 + y^2 This is a function because relations cannot be an equation right?
*October 5, 2007 by Lizzy*

**Algebra**

Does this relation define a function? y^2=3x My answer: 3x=y^2|0|3|12|27 y |0|1| 2| 3 y^2=3x is a function because the coordinates I chose are not duplicated.
*March 28, 2008 by Sara*

**Algebra**

Does this relation define a function? y^2=3x My answer: 3x=y^2|0|3|12|27 y |0|1| 2| 3 y^2=3x is a function because the coordinates I chose are not duplicated.
*March 28, 2008 by Sara*

**math **

The table shows the outputs y for different inputs x: Input (x) 3 7 11 15 Output (y) 4 6 8 10 Part A: Do the data in this table represent a function? Justify your answer. (3 points) Part B: Compare the data in the table with the relation f(x) = 5x 21. Which relation has a ...
*December 3, 2015 by brittany *

**algebra help!**

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
*November 6, 2014 by Nikky*

**Math**

Determine whether each of the following function is invertible and very briefly explain your answer. a) The function that pairs the number of days since your birth with your age in years. b) The function that pairs the speed of your car in miles per hour with the speed in ...
*November 22, 2012 by Steph*

**Calculus**

Consider a differentiable function f having domain all positive real numbers, and for which it is known that f'(x)=(4-x)x^-3 for x>0. A. Find the x-coordinate of the critical point of f. Determine whether the point is a relative maximum, a relative minimum, or neither for ...
*May 7, 2015 by Sarah*

**math**

Determine whether the function of f(x)=[[x+1]] is odd, even, or neither. I figured since it's a step function it automatically couldn't have symmetry and therefore is neither. and doing the whole f(-x) thing: f(-x)=[[-x+1]] which is not equal to f(x) or -f(x). so the answer ...
*May 6, 2008 by Jennifer*

**algebra **

find the following for the function f(x)= (x+5)^2(x-1)^2 a) find the x and y intercepts for the polynomial function f b) determine whether the graph of f crosses or touches the x axis at each x intercept C) put all information together to obtain the graph of f
*August 18, 2012 by alli*

**Pre-Calc**

Determine whether the function is even, odd, or neither. f(x)= 7x^(3/4) How do you do this with a fraction?
*September 22, 2011 by Cade*

**Algebra **

We were asked to determine whether the equation defines y as a function of x. Could you explain this problem? y = x^2
*October 20, 2013 by Workshop 3 *

**Functions**

Determine algebraically whether the function f(x)=2x^42x^2 2x+1 is odd, even or neither.
*May 13, 2015 by Rob*

**CALCULUS**

How do I determine whether the function is even, odd, or neither. How do I describe the symmetry? ex 1) f(t)= t&2 +2t -3
*September 11, 2015 by SARA*

**math**

If you switch the domain and range of any function, will the resulting relation always be a function? Explain your answer with examples.
*October 2, 2008 by arya*

**Math**

Determine whether each verbal description represents a linear function or not. Correct me if I'm wrong on any of these!! 1. Jova walks quickly for 25 minutes then she rests for 5 minutes before continuing on for another 10 minutes. (NOT A LINEAR FUNCTION) 2 A rock that is ...
*October 30, 2013 by Leah*

**Math**

Determine whether each verbal description represents a linear function or not. Correct me if I'm wrong on any of these!! 1. Jova walks quickly for 25 minutes then she rests for 5 minutes before continuing on for another 10 minutes. (NOT A LINEAR FUNCTION) 2 A rock that is ...
*October 30, 2013 by Emily*

**Math**

Determine whether each verbal description represents a linear function or not. Correct me if I'm wrong on any of these!! 1. Jova walks quickly for 25 minutes then she rests for 5 minutes before continuing on for another 10 minutes. (NOT A LINEAR FUNCTION) 2 A rock that is ...
*October 30, 2013 by Leah*

**Pre cal**

In a sinusoidal,function, how do you determine whether or not y= sin4(x) has a period of 2 pi If it is equal to 2 pi then what is a sinusoidal function that is not equal to 2 pi
*March 11, 2014 by Lannah*

**Math (functions)**

How can I tell whether a function will be reflected in the x-axis or y-axis and whether it will be horizontally and vertically compressed or not? For example, this function: y=-2f(4(x-2)) + 8
*March 30, 2008 by Lucy*

**math**

1. There are many ways to describe relations and function. Consider the relation shown as a set of ordered pairs: {(2,3),( −1,5),(4,3),(0,5),(3, −2)} a. Describe this relation in three different ways:
*January 16, 2016 by victoria*

**Math**

Determine whether the function is periodic. State the period, the domain and the range of g(x)= 2 cos 2x+3 sin 5x
*January 26, 2011 by Sierra*

**Precal**

1. Determine whether -9x+11y^3-3=-7x^2 defines y as a function of x. Please show all of your work. (Points : 5)
*January 18, 2012 by Deb*

**Math**

Determine whether each verbal description represents a linear function or not. Correct me if I'm wrong on any of these!! 6.The price for x pounds of cheese at $6.99 per pound (LINEAR FUNCTION) 7. A car accelerating on the highway to reach a speed of 62 mph then slowing down ...
*October 30, 2013 by Leah*

**Math**

Determine whether each verbal description represents a linear function or not. Correct me if I'm wrong on any of these!! 6.The price for x pounds of cheese at $6.99 per pound (LINEAR FUNCTION) 7. A car accelerating on the highway to reach a speed of 62 mph then slowing down ...
*October 30, 2013 by Emily*

**Math**

Determine whether each verbal description represents a linear function or not. Correct me if I'm wrong on any of these!! 6.The price for x pounds of cheese at $6.99 per pound (LINEAR FUNCTION) 7. A car accelerating on the highway to reach a speed of 62 mph then slowing down ...
*October 30, 2013 by Leah*

**Math - Int Trig**

31) Locate, name, and classify the extrema of the function. Determine intervals which the function is increasing and decreasing f(x) = -x(x^2 - 2) 32) Determine the end behavior of the function f(x) = 2x - x^3
*May 16, 2014 by Lilly*

**math**

okay, sorry for last post but this one i'm stuck on. Use the vertical line test to determine if the relation {(6, 2), (2, 6), (0, 3), (3, 5)} is a function. Explain your response sorry that i cant put the graph down. those numbers are points in a graph. ok, all the points ...
*January 11, 2015 by SkatingDJ*

**Physical Chemistry3**

The specific volume of water is given quite accurately by the empirical relation ln(v) = −6.7081 + 1.01257 ln(T) + 280.663/T Use this relation to derive an equation for the coefficient of thermal expansion and determine the temperature at which this quantity is equal ...
*September 29, 2008 by Amber*

**Physical Chemistry3**

The specific volume of water is given quite accurately by the empirical relation ln(v) = −6.7081 + 1.01257 ln(T) + 280.663/T Use this relation to derive an equation for the coefficient of thermal expansion and determine the temperature at which this quantity is equal ...
*September 29, 2008 by Amber*

**physics**

At t= 0, a particle starts from rest at x= 0, y= 0, and moves in the xy plane with an acceleration ->a (vector) = (4.0ihat+ 3.0jhat)m/s^2. Assume t is in seconds. Determine the x component of velocity as a function of time t. Determine the y component of velocity as a ...
*September 13, 2009 by Physics*

**Precalculus with applications**

Determine whether the system of inequalities is infeasible, has alternate optimal solutions, or is unbounded for the function f(x,y)=2x+y
*November 18, 2008 by Laura*

**Algebra**

Find the following function f(x)=(x+3)^2(x-1)^2 (a)Find the x and y intercept of the polynomial function f. (b) Determine whether the graph of the f crosses or touches the x-axis at each x intercept. (c) Put all the information to obtain the graph of f.
*March 24, 2013 by Jenn*

**math algerbra 2**

blah this is making no sense, please help me: If you switch the domain and range of any function, will the resulting relation always be a function? Explain your answer with examples.
*October 2, 2008 by arya*

**Math**

For each function, i) determine the corresponding reciprocal function, y =1/f(x) ii) state the non-permissible values of x and the equation(s) of the vertical asymptote(s) of the reciprocal function iii) determine the x-intercepts and the y-intercept of the reciprocal function...
*January 1, 2016 by Patricia*

**math**

I know It's probably an easy question but I don't know remember how to do it. Show the work to determine if the relation is even, odd, or neither. a ) f(x) = 2x^2 - 7 b) f(x) = -4x^3 - 2x c) f(x) = 4x^2 - 4x + 4 If f(-x) = f(x), for any x, the function is even. If f(-x) = -f(x...
*August 20, 2007 by manny*

**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*

**college algebra**

Use the intermediate value theorem to determine whether the polynomial function has a zero in the given interval. f(x)=8x^5-4x^3-9x^2-9;[1,2]
*October 29, 2011 by julez*

**Algebra2**

Complete parts a c for each quadratic function. a. Find the y-intercept, the equation of the axis of symmetry and the x-coordinate of the vertex. b. Make a table of values that includes the vertex. c. Use this information to graph the function. 1. f(x) = 2x2 2. f(x) = x2 + 4...
*February 8, 2008 by Mara*

**algebra**

Determine whether each expression is a polynomial. If it is a polynomial, find the degree and determine whether it is a monomial, binomial, or trinomial. 1. 7a^2b + 3b^2 a^2b 2. 6g^2h^3k
*February 3, 2016 by Sally*

**Algebra II**

Need help please. Thank you. 1. Determine whether the function has a maximum or minimum. State that value. f(x)= -2x^2-4x 2. Determine what c would in order to complete the square. x^2-5x+c 3. Solve the quadratic by factoring. 3x^2-16x+5=0 4. Solve the quadratic by factoring. ...
*November 24, 2015 by Michael *

**VERY URGENT MATH(Formalizing Relations & Functions**

What is the domain of the function below? {(0,2), (3,1), (5,2), (8,4)}? (1point) Is the following relation a function? {(0.3, 0.6), (0.4, 0.8), (0.3,0.7), (0.5,0.5)} (1point)
*November 7, 2013 by Gabby*

**Physics urgent help needed!**

Suppose the position of an object is given by ->r(vector) = (3.0t^2*ihat - 6.0t^3*jhat)m. Where t in seconds. Determine its velocity ->v as a function of time t. Determine its acceleration ->a as a function of time t. Determine ->r at time t = 2.5 s. Determine ->...
*September 13, 2009 by How do you do this?*

**Math**

Can someone help me with this I figured out a similar problem P(x) = xsquare+5 over 50 for x = 1 got 0.12 But having problems on how to plug the numbers into this problem. you don't have to use these numbers but if someone could do an example for me I would appreciate it. Test...
*May 31, 2013 by Nora 5*

**Determine without graphing**

Determine without graphing, whether the given function has a maximum value and then find the value. f(x)=3x^2+30x-1
*March 15, 2013 by Jenn*

**Algebra 2**

Determine whether the function is even, odd, or neither. f(x)=-4x²+5x Its odd right?
*July 4, 2011 by Reanna*

**Trig**

a) Determine the equation of a sine function that would have a range of {yR|-7<(or equal) Y <(or equal) 1} and a period of 135degrees. b) determine the cosine function that results in the same function an part (a). Any help provided will be greatly appreciated.
*July 24, 2010 by Nada*

**Math**

Determine whether or not the function is one-to-one. 1. f(x) = 2x - 7 2. f(x) =(11x − 5)
*August 31, 2011 by Trisha*

**Math**

Determine whether the function is one-to-one. If it is, find itd inverse. f(x)= 3x+4 over 5
*February 19, 2009 by Kim*

**Grade 11 MAth**

Determine the equation of a sine function that would have a range of {y| -4 ≤ y ≤ 1, y ε R} and a period of 45o. Determine the cosine function that results in the same graph as the function above. Deter
*December 7, 2012 by sarah*

**Pre-Calculus**

For the function f(x)=12x^3+4x^2-27x-9 describe the end behavior. Find the real zeros of f and determine whether the graph crosses or touches the x-axis at each x-intercept. Use the zeros of f and test numbers to find the intervals over which the graph of f is above or below ...
*October 10, 2015 by Leizy*

**maths/ physics**

An aircraft P flying at a constant height has a velocity of (300+j400)km/h. Another aircraft Q at the same height has a velocity of (200+j500) km/h. Determine a)the velocity of P in relation to Q. b) the velocity of Q in relation to P
*January 2, 2011 by Ian Hart*

**math-calc**

Consider the function f(x)= (2x+8)/(6x+3). For this function there are two important intervals: (-inf, A) (A, inf) and where the function is not defined at A . Find A For each of the following intervals, tell whether is increasing (type in INC) or decreasing (type in DEC). ...
*March 13, 2009 by mkcolema*

**math9**

which relation is NOT a function? 1) {(1,5),(2,6),(3,6),(4,7)} 2) {(4,7),(2,1),(-3,6),(3,4)} 3) {(-1,6),(1,3),(2,5),(1,-7)} 4) {(-1,2),(0,5),(5,0),(2,-1)}
*May 22, 2011 by michaela .b.*

**Math**

How do you know if a relation is a function?
*May 26, 2011 by Scott*

**Math**

Which relation is NOT a function? Y=0 X=2 Y=2x Y=x+2
*February 6, 2014 by Joseph*

**algebra**

Is the relation a function{(14,15),(5,7),(3,10),(11,1),(5,8) yes or no
*February 26, 2014 by snow*

**Math**

{(-8,-6),(-5,2),(-8,1),(7,3)} Is this relation a function?
*November 30, 2015 by Kaai97*

**Math**

{(-3,-7),(-2,-7),(4,-7),(5,-7)} Is this relation a function?
*November 30, 2015 by Kaai97*

**math**

Is the relation a function? 4 -> 8 7 -> 11 10 -> 14 12 -> 10 A. yes B. no
*May 4, 2016 by emily*

**Algebra**

Consider the quadratic function f(x) = x^2 + 10x 26. Determine whether there is a maximum or minimum value and find that value.
*July 7, 2009 by Laurie*

**Determining symetry**

Determine algebraically whether the graph of the function g is symmetric with respect to the x-axis, y-axis, or origin. g(x)=[(x^2)+(y^2)]^2=2xy
*September 9, 2008 by Shannon*

**Math**

Determine whether the function x^3+x^2-1 is even, odd or neither. I thought it was odd because it has one negative sign is this correct
*February 22, 2009 by lt*

**College algebra**

Determine without graphing, whether the given function has a maximum value and then find the value. f(x)=3x^2+18x-6
*March 15, 2013 by Jenn*

**Algebra III / Core II**

It has been since the beginning of last year since I last did this math and the teacher I currently have is a sub and doesn't know what the heck she's doing either - so if anyone can help me, that'd be oh so amazing! a. Solve d=rt in terms of d and t. b. solve p=4q + 12r for q...
*September 7, 2008 by Kristen*

**Discrete Structures**

Consider the divisibility relation on the set S = {-5,-3,-2,2,3,5} To be more precise, this is the relation: R = {(x, y) ∈ S^2| x divides y}. Is the relation Reflexive? Symmetric? Anti-symmetric? Transitive? ----------------------- The relation is reflexive because all ...
*April 27, 2016 by Anonymous*

**Business Calculus**

A company has operating costs of $2000 per thousand items produced. Its revenue function can be modeled by the equation: R(x)=30x/(x+2)² , where x is measured in thousands of items produced, and C and R are measured in thousands of dollars (so C(x)=2). 1. Determine the price-...
*March 25, 2011 by Adriana*

**Math**

Select the relation that is a function. a. {(21, 11), (21, 10), (21, 9), (21, 8)} c. {(-6, -5), (3, 2), (10, 8), (3, 3)} b. {(-2, -1),(5, -1), (16, 3), (-3, -9)} d. {(5, 10), (-3, 10), (-3, -10), (4, 7)}
*August 17, 2013 by Anonymous*

**Algebra**

Is the following relation a function? ((0.3, 0.6). (0.4,0.8), (0.3,0.7), (0.5,0.5))
*October 23, 2014 by Steve*

**Math**

Which relation is a function? (Points : 1) A.(1, 2), (1, 5), (1, -1), (1, 4)} B. {(8, -1), (2, -1), (3, 8), (2, 5} C. {(-3, 4), (-2, 5), (0, 9), (0, 12)} D. {(7, 12), (1, -5), (3, -10), (2, -5)} Is its C :P?
*March 3, 2015 by Gia*

**Discrete Math**

a) Show that the relation R on Z x Z defined by (a , b) R (c, d) if and only if a + d = b + c is an equivalence relation. b) Show that a subset of an anti symmetric relation is also anti symmetric. c) Suppose that R is a symmetric relation on a set A. Is R also symmetric? ...
*March 15, 2012 by Confused!! *

**Calculus**

1. Determine whether Rolle's Theorem applied to the function f(x)=((x-6)(x+4))/(x+7)^2 on the closed interval[-4,6]. If Rolle's Theorem can be applied, find all numbers of c in the open interval (-4,6) such that f'(c)=0. 2. Determine whether the Mean Value Theorem applied to ...
*October 31, 2012 by Rudy*

**Maths**

Given the equation y=2x-4 of an exponential function f 1)write down the equation of horizontal asymptote of f 2)determine the y intercept of f 3)determine the y value of a point on f with x=-2 4)draw the graph of the function of f showing all critical poins and asymptotes 5)...
*May 12, 2015 by Anonymous*

**Math**

Use the Factor Theorem to determine whether x-3 is a factor of P(x)=2x^3-5x^-9 . Specifically, evaluate P at the proper value, and then determine whether x-3 is a factor. P(_)=__ also pick which one applies x-3 is not a factor of P(x) x-3 is a factor of P(x)
*January 24, 2011 by Joe*

**Algebra**

Use the Factor Theorem to determine whether x+2 is a factor of P(x)=2x^4+x^3-3x-9. Specifically, evaluate P at the proper value, and then determine whether x+2 is a factor. P(__)= x+2 is or is not a factor of P(x)____
*May 17, 2011 by Miranda*

**algebra**

Is the relation y> the absolute value of x+3 a function? Why?
*September 25, 2010 by Rachael*

**Algebra II**

Which of the following is a relation but not a function a)( -10,1)(1,8)(-4, 2) b) (-4, 1)(1,1)(-2,-2) c) (-5,1)(1, -7)(21, -2) d) none of these?
*April 2, 2011 by anonymous*

**help plz**

Which relation is a function? {(5, 1), (4, 9), (6, 10)} {(0, 3), (0, 9), (12, 4)} {(5, 5), (5, 9), (5, 15)} {2, 10), (6, 10), (2, 3)} the third one?
*October 7, 2014 by Sara*

**algebra**

Is the following relation a function? {(1, -2), (1, -3), (2, 1), (3, -2)} Yes or no pls help me
*September 7, 2015 by oscar*

**MATH**

Identify the relation that is also a function. A. {(4, 2) (4, -3) (9, 3) (9, -3)} B. {(1, 0) (2, 3) (3, -1) (1, 5)} C. {(0, -1) (1, -2) (2, -3) (-1, 2)} D. {(5, 4) (5, 1) (5, 3) (0, 5)} D???
*October 14, 2015 by Shalee ^~^*

**Math**

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***
*November 18, 2015 by Kaai97*

**Simple pre cal**

Is the relation a function? {(14, 9), (15, 8), (8, 7), (1, 9), (15, 2)}
*December 3, 2015 by maddie*