Solving the Composition of Two Functions

What is the output of the function f(x) = 2x when x = -3?

• -3

• 6

• -6

• 3

In the context of function composition, what does g(f(x)) represent?

• The product of g(x) and f(x)

• The function f applied to the output of g(x)

• The function g applied to the output of f(x)

• The sum of g(x) and f(x)

If f(x) = 2x and g(x) = x + 5, what is g(f(x))?

• 2x + 5

• x + 10

• 2x + 10

• x + 5

How do you evaluate f(g(x)) if f(x) = 2x and g(x) = x + 5?

• x + 10

• 2(x + 5)

• x + 5

• 2x + 5

What is the result of simplifying f(g(x)) when f(x) = 2x and g(x) = x + 5?

• 2x + 5

• 2x + 10

• x + 10

• x + 5