Free Practice Question

PS · Problem Solving

sub-505

Functions

Given that $f(x) = x^3 - 7$ and $f(m) = 1$ , what is the value of m?

Answer Choices

Correct answer marked below

A

-20

B

1

2

Correct

D

5

E

20

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Explanation

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Official Explanation

Official

Starting with the function f(x) = x^3 - 7, we know that f(m) = 1. Therefore, we set up the equation: [m]f(m) =…

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2

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L

LJul 19, 2024

good question

K

krishnaJan 14, 2025

appreciated!

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.

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Given that f(x)=x3−7f(x) = x^3 - 7f(x)=x3−7 and f(m)=1f(m) = 1f(m)=1, what is the value of m?