1,744 Answered Questions for the topic Functions

Functions

02/14/16

Functions of f and g

1. Find (f º g)(-7) and (f º g)(-7) f(x)=2x-1; g(x)=x2-5   2. Find (f º g)(x) and (f º g)(x) and the domain of each f(x)=x2+2; g(x)=√8-x Thanks! (Please note that "8-x" is inside the radical sign more
Functions

02/12/16

Functions for math

"Start with one of the parent functions f(x) = 1/x, f(x) = √x or f(x) = |x| anda. write the transformed function if we shift f(x) left 2 units, stretch it vertically by a factor of 3 and shift down... more
Functions

02/11/16

f(x) question

Select the approximate values of x that are solutions to f(x) = 0, wheref(x) = -5x^2 + 5x + 7.   A. {1.78, –0.78} B. {-5, 5} C. {–1.00, –1.40} D. {–0.71, 0.71}   so from last time I posted the... more
Functions

02/11/16

f (x) question

Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -7x^2 + 9x + 5   A. {–1.40, 1.80} B. {-7, 9} C. {–1.29, –0.71} D. {–0.42, 1.70}   explain the answer so I can... more
Functions

02/08/16

if f(x) = -3x + 2, explain how to determine f(4).

if f(x) = -3x + 2, explain how to determine f(4).
Functions

02/08/16

You know that the point (1,2) is on the graph of a function of f . Give the coordinates of a point that you know is not on the graph of f. Explain

You know that the point (1,2) is on the graph of a function of f . Give the coordinates of a point that you know is not on the graph of f. Explain
Functions Piecewise Function

02/05/16

Can someone check my work and also help

Can someone help me with this equation. I am not sure I did this correctly but I watched many videos to help me solve this problem and this is what I have so far.   Consider the graph of the... more
Functions

02/03/16

can someone help with my question

Let f(x)=|6-x|.(a) State the zero(s) of the function.(b) Which of the following is true? A. f is an even function.B. f is an odd function.C. f is both even and odd.D. f is neither even nor... more
Functions

02/02/16

what is the ordered pair for the function f(-14)=11

what is the ordered pair

Please help me with function decomposition? Pre-Calculus?? Very confused!

1. Given the composition h(x)=f(g(x)) If h(x)=(x+3)^8 and f(x)=x^8, find the function g(x).           2. Given the composition h(x)=f(g(x))If h(x)=1/x+3 and g(x)=x+3 , find the function... more
Functions

01/17/16

I just need to create correct examples. I did some but she said they were incorrect. I really need help

Consider the parent quadratic function f(x) = x2. Give the equation of a function that represents a horizontal translation of the parent, that is, it has moved right or left. (Many correct examples... more
Functions

01/16/16

need help with functions

Is f(x)=2-5x^2 correct when f(root of 2) - f(1)=-5
Functions Algebra 1

01/04/16

How do you do a function beggining with y?

The question is  y=-x2+1
Functions

12/23/15

Refer to function f,g and h. Evaluate the function for the given value of x. write any number in the answer as an integer or a simplified fraction.

Refer to function f,g and h. Evaluate the function for the given value of x. write any number in the answer as an integer or a simplified fraction.   f(x)=x^3+3x g(x)= under root... more
Functions Function

12/21/15

f(x)=root (x-2),g(x)=x^2+x.the function (f*g)(x) is defined for x = all real numbers except for interval a,b 1.calculate the value of a and b 2.find the range o

f(x)=root (x-2),g(x)=x^2+x.the function (f*g)(x) is defined for x = all real numbers except for interval a,b 1.calculate the value of a and b 2.find the range of (f.g)
Functions Algebra 2 Algebra Quick

12/21/15

What is the domain and range of the function x^4+y=42

Write your answers in interval notation, separated by a semicolon. Only need answer no explanation
Functions

12/21/15

Functions question

f(x)= x2+6x+8 A(-4,0) B(-2,0) C(0,8) what is the relationship between the value of c and the roots of f(X)?   is there a relationship between the roots and the coefficient Of X? Explain your... more
Functions

12/21/15

Functions Question

if f(x)= x2+6x+8 has the roots of -8 and 2, what most the value of k be?ii) if f(x)=x2+6x+8 has equal roots; what's the value of k?
Functions

12/14/15

i need to find a equation with (5,-5);2x+3y=7

i need to find a equation with (5,-5);2x+3y=7
Functions

12/11/15

f(x)=1/4x+3, find the value of x for which f(x)=x.

f(x)=1/4x+3, find the value of x for which f(x)=x.
Functions

12/07/15

Finding the funtion

How do you find the function with the following points (1,9) (2,10.5), (3,13) (4,14.50)
Functions

12/07/15

Fill in the blanks. 1. a(x-h)²+k is_____________ form where (h,k) is the____________.

Please help
Functions

12/07/15

Fill in the blanks. 1. (x-p)(x-q) is ________________ form where p and q are the _________.

Help please 

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