6
lesson pretestMultiple Choice

Pretest

Question 6 • CMS 2026-2027 NC Math 2 CREDIT RECOVERY

What is the domain of the function y is equal to cube root of x ?

Answer
A
negative infinity is less than x comma x is less than infinity
B
0 is less than or equal to x comma x is less than infinity
C
0 is less than x comma x is less than infinity
D
1 is less than or equal to x comma x is less than infinity

Explanation

The cube root is defined for every real number, including negative numbers, zero, and positive numbers. For example, ∛(−8) = −2, so the domain extends below zero as well as above it. Therefore, the domain is all real numbers, which is choice D.

AI-written and checked against the verified answer.

Previous
Next