Q 1. - Precalculus Enhanced with Graphing Utilities

Question

Is the set of ordered pairs $\left[\left(1,3\right), \left(2,3\right), \left(-1,2\right)\right]$ a function? Why or why not? 

Step-by-Step Solution

Answer

Yes, given set of ordered pair is function.

Step 1. Definition

A function is a relationship between inputs where each input is related to exactly one output. 

Step 2. Explanation

In given set of ordered pair every input have exactly one output. So given set of ordered pair is function.