Answer:
Undefined
Step-by-step explanation:
To find slope, you need the difference of y over the difference of x.
For example, let's use (-8,8) and (-8,3).
Difference of y: 8-3
Difference of x: -8-(-8) (Note that the order of the x values must be the same as the order of the corresponding y values of the coordinate)
(8-3)/(-8+8)
= 5/0
Now, we see that we have to divide by 0, except it's impossible to divide by 0, so the slope is left as undefined.
