Question

How much water is being collected per day? (Think slope!)

Answer 1

1.5 liters

Explanation:

we have

x ------> the number of days

y -----> the amount of water collected in liters

To find out how much water is collected by day, determine the slope of the linear equation

The formula to calculate the slope between two points is equal to

`m=(y2-y1)/(x2-x1)`

Observing the graph

we have

(0,2) and (4,8)

substitute the values in the formula

`m=(8-2)/(4-0)`

`m=(6)/(4)`

`m=1.5(l)/(day)`

therefore

The amount of water collected is 1.5 liter by day