Question

look at this set of ordered pairs: (2, 20) (1, 6) (19, 12) (12, 3) is this relation a function? yes no submit

Explanation:

Step1: Recall function definition

A relation is a function if every input (x-value) has exactly one output (y-value).

Step2: List all x-values

The x-values are 2, 1, 19, 12.

Step3: Check for repeated x-values

All x-values appear exactly once, so each has one unique y-value.

Answer:

yes