Relations And Functions Practice Questions Ques24
Question: If $f(x) = 2x + 1$ and $g(x) = x^2$, what is $f(g(2))$?
Options:
(A) 9
(B) 8
(C) 7
(D) 5
Show Answer
Answer: A
Explanation:
(A) Correct. $f(g(2)) = f(2^2) = f(4) = 2(4) + 1 = 9$
(b) Incorrect. This would be the result if $f(x) = 2x$.
(C) Incorrect. This is not the correct calculation.
(d) Incorrect. This would be the result if $g(2) = 2$.
BETA
