Composition of Functions Quiz (5 Questions)

1. What does f(g(x)) mean?

2. Which function is applied first in f(g(x))?

3. If g(x) = x + 1 and f(x) = 2x, find f(g(2)).

4. True or False: f(g(x)) is the same as g(f(x)).

5. What is the main idea of function composition?

Answer Key

1. Apply g first, then f

2. g(x)

3. 6

4. False

5. Using one function’s output as another’s input