Answer:
Slope is undefined.
Explanation:
slope is defined as the steepness of a line.It is also called gradient.
It is denoted by m.
It is ratio of change in y to change in x.
m=Δy/Δx=

From question statement, we observe that


putting above values in formula to find slope,we get
m=2-(-7)/-6-(-6)
m=2+7/-6+6
m=5/0= undefined.
The slope of vertical line is undefined.