Time(h) Rainfall (in.)
3 2
6 4
9 6
12 8
Graph the data in the table on the coordinate plan grid. Draw the line.
Find slope
Identify the unit rate.
To find the slope of the line, we can use the formula:
Slope = (change in y)/(change in x)
We have two points (3,2) and (12,8). Let's calculate the change in x and change in y:
Change in x = 12 - 3 = 9
Change in y = 8 - 2 = 6
Now, we can find the slope:
Slope = 6/9 = 2/3
The unit rate of the slope is 2/3, which means for every 3 hours, there is an increase of 2 inches in rainfall.