4
Answer: BSet 1: Function Notation (Intermediate)
Explanation
PROBLEM
If f(x) = 1x + 3 and g(x) = 3x + 4, find f(g(6)).
If f(x) = 1x + 3 and g(x) = 3x + 4, find f(g(6)).
A.
26
B.✓ Correct
25
C.
27
D.
22
Detailed Explanation
Choice B is the best answer. g(6) = 3(6) + 4 = 22. f(22) = 1(22) + 3 = 25
Why others are wrong:
A: 26 is incorrect because it does not satisfy the equation.
C: 27 is incorrect because it does not satisfy the equation.
D: 22 is incorrect because it does not satisfy the equation.