Question

Here you go the brainless

Answer 1

Subtract the y-coordinates: -2 - 3 = -5
Subtract the x-coordinates in the same order: 1 - 1 = 0

slope = (difference in y)/(difference in x) = 5/0

Since the slope ends up as division by zero, and division by zero is undefined, the slope of this line is undefined.

Hint for future:
Vertical line: undefined slope
Horizontal line: zero slope
Line tilts up to the right: positive slope
Line tilts down to the right: negative slope