Answer:
-8
Step-by-step explanation:
Solution 1. Using the slope formula, we pick two of the points for each coordinate and plug them in. I chose (1, -8) and (2, -16) because they will be the easiest to calculate with. (-8+16)/(1-2)= 8/-1=-8.
Solution 2. Using observation, we notice that every increase of x by 1 leads to a decrease in y by 8. Since the y is going down as x increases, the slope is negative. As a difference in 1 for the x coordinate leads to a difference in 8 for the y coordinate, the slope is + or - 8.
The slope is negative, so it is -8.
