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Answer: CSet 3: Function Notation (Intermediate)
Explanation
PROBLEM
If f(x) = 2x + 1 and g(x) = 2x + 1, find f(g(2)).
If f(x) = 2x + 1 and g(x) = 2x + 1, find f(g(2)).
A.
10
B.
14
C.✓ Correct
11
D.
13
Detailed Explanation
Choice C is the best answer. g(2) = 2(2) + 1 = 5. f(5) = 2(5) + 1 = 11
Why others are wrong:
A: 10 is incorrect because it does not satisfy the equation.
B: 14 is incorrect because it does not satisfy the equation.
D: 13 is incorrect because it does not satisfy the equation.