Question

A trainer takes a survey of all the athletes in a school about their height, rounded to the nearest inch, and their grade level. The trainer relates their grade levels to their heights. Is this a function?

Answer 1

No!!!

Explanation:

We are talking about grades and height, and we know that students can have different grades and be the same height. This means that one input (one height) can produce multiple outputs (different grades), therefore, this is not a function.

Answer 2

This is funtction cause the trainer took a survey and rounded to the nearest inch to find how tall his students are

Explanation: