We have the next table with point that represents a line
And we must find the slope of the line
In order to find the slope of the line we must use the next formula
Where (x1, y1) and (x2, y2) are points where the lines passes
In this case, we can use the points (2, -6) and (2, 1)
Since the denominator is 0. The slope is a undefined slope,
ANSWER:
Undefined slope.