Quiz 2: Relations and Functions

Given the functions, f(x) = x 2 + x - 5 and g(x) = 4x 2 - 2x + 1, perform the indicated operation. When applicable, state the domain restriction. (f - g)(x)

-3x2 + 3x - 6

Given f(x) = 3x - 1 and g(x)= -x + 6, find f(-2) + g(5).

-6

Given the following table, find the rate of change between f(-4) and f(0).

1/2

Given that F(x) = x 2 + 2, evaluate F(1) + F(5).

30

Given that F(x) = x 2 + 2, evaluate F(2).

6

If ƒ(x) = 2x2 + 3, then which of the following represent ƒ(-1)?

Wrong: -1

If G(x) = 3x + 1, then G -1(1) is

Wrong: 4

Given the functions, f(x) = x 2 - 4 and g(x) = x + 2, perform the indicated operation. When applicable, state the domain restriction. f(g(x))

x2 + 4x