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 hour.

What is the range of this relation?

Answer 1

c

Explanation:

the maximum of y is 5 the minimum of y is 3

Answer 2

c. 3
`\leq` y
`\leq` 5

Explanation:

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 hour.

Therefore, the speed (y) of Rosalie ranges from 5 mph to 3 mph including the values.

So, the range of this relation is 3 ≤ y ≤ 5.