Line 1: We are given the points (-3, 1) and (-7, -2).
Line 2: We are given the points (2, -1) and (8, 4).
In order to calculate the slope, we use the formula:
m = (y2-y1)/(x2-x1)
Substitute in the points to find the slope.
Line 1: (-2 - 1)/(-7 - (-3)) = -3/-4 = 3/4.
Line 2: (4 - (-1))/(8-2) = 5/6.
