Answer:
So the equation should be in the form; y = mx + b
y = Slope + Starting Point
y = 600x + 1500
Explanation:
So since pool already contained 1500 gallons of water it will be + 1500
The starting point is where we met it which was 1500
The slope is calculated with the formula;
Slope:
=
= 600
So the rate of change/Slope = 600