Answer:
Undefined.
Explanation:
slope is the change in y over the change in x.
(-5,8) and (-5,4)
The y values are 4 and 8. You find the change by subtracting.
The x values are -5 and -5. You find the change by subtracting
=
=
we cannot have zero as our denominator, so we say thatthe slope is undefined. The would be a vertical line, if we graphed it.