Introduction to Functions — Quiz

Question 8 • CMS 2026-2027 NC Math 1 CREDIT RECOVERY

Which graph shows a set of ordered pairs that represents a function?

Answer

Image with description On a coordinate plane, solid circles appear at the following points: (negative 5, 2), (negative 4, negative 4), (negative 3, 4), (negative 2, 2), (2, negative 2), (4, 3).

Image with description On a coordinate plane, solid circles appear at the following points: (negative 5, 4), (negative 3, 2), (negative 1, 3), (1, 1), (1, negative 2), (3, negative 3).

Image with description On a coordinate plane, solid circles appear at the following points: (negative 4, 2), (negative 1, 4), (1, 0), (2, 3), (2, negative 3), (3, 1).

Image with description On a coordinate plane, solid circles appear at the following points: (negative 4, 2), (negative 3, negative 4), (negative 3, 4), (negative 2, 1), (2, negative 3), (3, negative 1).

Explanation

A set of ordered pairs represents a function when each x-value is paired with exactly one y-value. In choice A, the x-values −5, −4, −3, −2, 2, and 4 are all different, so no input has more than one output. The other choices each repeat an x-value with different y-values.

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