Free Practice Question
PS · Problem Solving
sub-505
Functions
Given that f(4x + 1) = -8x, what is the value of f(9) ?
Answer Choices
Correct answer marked below-16
Correct
B
-8
C
-4
D
4
E
8
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Explanation
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Official Explanation
Official
To find f(9), we start with the equation f(4x + 1) = -8x. We need to determine the value of x that makes 4x + 1 equal to 9. Setting up the equation, we have…
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Comments
2
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J
JEANJan 19, 2024
Can you explain more?
A
AlkaDec 19, 2024
thanks
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