7
Answer: ASet 1: Function Notation (Advanced)
Explanation
PROBLEM
If f(x) = 1x + 3 and g(x) = 4x + 4, find f(g(3)).
If f(x) = 1x + 3 and g(x) = 4x + 4, find f(g(3)).
A.✓ Correct
19
B.
21
C.
16
D.
17
Detailed Explanation
Choice A is the best answer. g(3) = 4(3) + 4 = 16. f(16) = 1(16) + 3 = 19
Why others are wrong:
B: 21 is incorrect because it does not satisfy the equation.
C: 16 is incorrect because it does not satisfy the equation.
D: 17 is incorrect because it does not satisfy the equation.