Question

Raj’s bathtub is clogged and is draining at a rate of 1.5 gallons of water per minute. The table shows that the amount of water remaining in the bathtub, y, is a function of the time in minutes, x, that it has been draining.

What is the range of this function?

A. all real numbers such that y ≤ 40
B. all real numbers such that y ≥ 0
C. all real numbers such that 0 ≤ y ≤ 40
D. all real numbers such that 37.75 ≤ y ≤ 40

Answer 1

Subtract the largest value and the lowest value from the set in the y coordinates.

Answer 2

That will give you, your range.