Slope is represented by m
So when you see an question like y = mx + b, m is the slope
You can calculate slope using this formula: (y2 - y1)/(x2 - x1)
Lets use the points (1, 3) and (2, 10)
y2 is 10
y1 is 3
x2 is 2
x1 is 1
(10 - 3)/(2 - 1)
10 - 3 = 7
2 - 1 = 1
The slope would be 7.
Therefore, m = 7