x y
-2 80
-1 70
2 40
5 10
the rate of change =
To find the rate of change, we can use the formula:
Rate of Change = change in y / change in x
First, we need to determine the change in y and the change in x.
Change in y = final y value - initial y value
Change in x = final x value - initial x value
Using the given data, we can calculate the changes as follows:
Change in y = 10 - 80 = -70
Change in x = 5 - (-2) = 7
Now, substituting the values into the formula, we have:
Rate of Change = -70 / 7 = -10
The rate of change is -10.