Function Operations

The graphs of f(x) and g(x) are shown below. Which of the following is the graph of (g - f)(x)?

C

If and , what is the value of (f - g)(144)?

0

If f(x) = 8 - 10x and g(x) = 5x + 4, what is the value of (fg)(-2)?

-168

If f(x) = 3 - 2x and g(x)= 1/x+5, what is the value of f/g(8)?

-169

If f(x) = x2 - 2x and g(x) = 6x + 4, for which value of x does (f + g)(x) = 0?

-2

If f(x) = 3x2 + 1 and g(x) = 1 - x, what is the value of (f - g)(2)?

14

If f(x) = 4 - x2 and g(x) = 6x, which expression is equivalent to (g - f)(3)?

NOT: 6(3) - 4 - 32

If f(x) and g(x) are quadratic functions but (f + g)(x) produces the graph below, which statement must be true?

NOT: The leading coefficients of f(x) and g(x) are the same.

If r(x) = 3x - 1 and s(x) = 2x + 1, which expression is equivalent to r/s(6)?

a

If and d(x) = x + 3, what is the domain of (cd)(x)?

all real values of x except x = 2