8
Answer: BSet 2: Function Notation (Intermediate)
Explanation
PROBLEM
If f(x) = 1x + 2 and g(x) = 2x + 3, find f(g(2)).
If f(x) = 1x + 2 and g(x) = 2x + 3, find f(g(2)).
A.
12
B.✓ Correct
9
C.
10
D.
8
Detailed Explanation
Choice B is the best answer. g(2) = 2(2) + 3 = 7. f(7) = 1(7) + 2 = 9
Why others are wrong:
A: 12 is incorrect because it does not satisfy the equation.
C: 10 is incorrect because it does not satisfy the equation.
D: 8 is incorrect because it does not satisfy the equation.