Free Practice Question
PS · Problem Solving
sub-505
Functions
Given the functions and , what is the result of ?
Answer Choices
Correct answer marked belowA
1
3
Correct
C
9
D
12
E
15
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Explanation
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Official Explanation
Official
Let's break this down step by step: we have f(x) = 3x + 1 and g(x) = (x/3) - 1. We need to find: 3f(g(3)). First, we calculate g(3) by substituting x with 3 in g(x) =…
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Comments
2
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C
ClelioFeb 11, 2025
this pattern comes up frequently
A
AmanDec 3, 2024
Great!
What this question tests
What it tests
Your ability to evaluate and compose functions, including unusual defined operations.
Common trap
Applying function operations in the wrong order or ignoring domain restrictions.
Details
Difficulty
sub-505
Type
PS
Category