3
Answer: ASet 3: Function Notation (Advanced)
Explanation
PROBLEM
If f(x) = 3x + 4 and g(x) = 3x + 1, find g(f(5)).
If f(x) = 3x + 4 and g(x) = 3x + 1, find g(f(5)).
A.✓ Correct
58
B.
55
C.
61
D.
57
Detailed Explanation
Choice A is the best answer. f(5) = 3(5) + 4 = 19. g(19) = 3(19) + 1 = 58
Why others are wrong:
B: 55 is incorrect because it does not satisfy the equation.
C: 61 is incorrect because it does not satisfy the equation.
D: 57 is incorrect because it does not satisfy the equation.