Let  f(x) = (2x − 9) / (x + 2). (b) Show f −1 exists. Let f(a) = f(b) and show that a = b. f(a)=f(b) Multiply both sides of the equation by (a + 2)(b + 2).   Then, find the domain and range of  f −1. (c) Find f −1(x).

Q: Find f( - 1)  if f(x) = 2x2 - x.

A: Consider the given function. fx=2x2-x We have to find the value of f(-1). So, put -1 for x in the…

Q: Find f(3x) if f(x) = 9 – 4x2. f(3x) = = (Simplify your answer.)

A:

Q: Let f(x) = 5x² to f(6 + h). ƒ(6 + h) − ƒ(6) = 6x + 6. If f(6) = 150 and h = 5, determine the amount…

A: Given function:- fx=5x2-6x+6

Q: -4 3 2 -1 -4 -3 -2 -1 1 2 4 -1 -2 -3 --4 3.

A: To find f(2) using the given graph.

Q: Find f(3x) if f(x) = 7- 4x2. f(3x) = (Simplify your answer.)

A: The solution is:

Q: If f(x) = 4x 2 – 3x + 6, find f(-2).

A: We  have  given function  f(x) =  4x2-3x+6 To Find : The value of f(-2) Concept If we have a…

Q: If f(x) = x³ - 4x² + 3x - 1, find f(-2).

A: Since, it is given that f(x)=x3-4x2+3x-1 -(i)Our Aim is to find f(-2)=?

Q: Let f(x)=-x2-3x+5. find f(3).

A: To find the function in the given value, replace the 3 in place of x to obtain the result.

Q: Find f(3) if f(x) = - 4x2 + 5x.

A: A function relates inputs to outputs. An expression is said to be a function if for each input…

Q: If f(x) = 3 5x, find f(-17). -

A: f(x)=3-5xLet y=3-5x5x=3-yx=3-y5f-1(x)=3-x5

Q: What value of b completes the function f(x) = −x2 + bx + 1?

A: We have to find the value of b that completes the function f(x)=-x2+bx+1.

Q: ƒ(x) = −2x² + 3x – 1

A: f(x)=−2x2+3x−1

Q: If f(x) = 3x- x^2+2, find the value of: a.) f(0) b.) f(3) c.) f(-3) d.) f(-7) e.) f(3/2)

A: Given: fx=3x-x2+2 To find: a.) f(0) b.) f(3) c.) f(-3) d.) f(-7) e.) f32

Q: Find f( - 2) if f(x) = 4x? – - x.

A: To find value of function at any point we have to put the given value of variable into the function.

Q: f(x) = 5x + 2 a.) f(-2) b.) f(5)

A: To find the f(-2) and f(5)

Q: Find f(-7) if (x)=2x+8

A: Given  f(x)= 2x+8  we use substitution method to find value of f(x) at x= -7