Question

Rosalie is training for a marathon. She jogs for 30 minutes at a rate of 5 miles per hour then she decreases her speed over a period of time and walks for 60 minutes at a rate of 3 miles per hourWhat is the range of this relation

Answer 1

A. 3 ≤ y ≤ 5

Step-by-step explanation:

The range is the set of values that the variable y can take. In this case, the variable y is the speed, so the range is the set of values of Rosalie's speed in her training.

Since the speed takes values from 3 miles per hour to 5 miles per hour, the range is

3 ≤ y ≤ 5