My kids bathtub is being drained Since it is an ordinary tub

My kids’ bathtub is being drained. Since it is an ordinary tub, it can be modeled by the function

V(t) = -15t + 45 where V(t) is the volume of the tub in gallons and t is the time that has passed in minutes.

1.           Identify the slope of the function V(t) = -15t + 45. Clearly interpret this slope in the context

of the problem. Use complete sentences in your answer.

Solution

V = -15t + 45

Comparing this with y = mx + b, we get

Slope, m = -15

So, in the context of this prob,
what it means is that about 15 gallons of water
is being drained away from the tub per minute