7
Answer: CSet 2: Function Notation (Advanced)
Explanation
PROBLEM
If f(x) = 1x + 4 and g(x) = 1x + 3, find g(f(4)).
If f(x) = 1x + 4 and g(x) = 1x + 3, find g(f(4)).
A.
14
B.
8
C.✓ Correct
11
D.
10
Detailed Explanation
Choice C is the best answer. f(4) = 1(4) + 4 = 8. g(8) = 1(8) + 3 = 11
Why others are wrong:
A: 14 is incorrect because it does not satisfy the equation.
B: 8 is incorrect because it does not satisfy the equation.
D: 10 is incorrect because it does not satisfy the equation.