Step-by-step explanation:
the slope of a line is the ratio "y coordinate change / x coordinate change" when going from one point to another.
so, when we are going from e.g. (0, 1) to (1, 3)
x changes by +1 (from 0 to 1)
y changes by +2 (from 1 to 3)
and the slope is then +2/+1 = 2
and although I cannot see that result in the answer options, 2 is the right answer. I hope it is just under the given screenshot.
