Answer:
-3
Step-by-step explanation:
The formula to find the slope is (change in y)/(change in x). In other words, rise over run.
If we look at the data, we can see that the x and y value changes.
x value: 0 --> 2 --> 4 --> 6 --> 8
y value: 15 --> 9 --> 3 --> -3 --> -9
When y changed from 15 to 9, the x changed from 0 to 2.
y: 15 --> 9
x: 0 --> 2
There was a difference of -6 in the y and a difference of 2 in the x.
At the top, I wrote that the slope was (change in y)/(change in x)
With -6 and 2 we found, we can say that the slope is -6/2.
If we simplify this answer, we end up with -3.
So -3 is the slope of the data.
