y = mx + b
m is the slope, b is the y intercept
Points: (3, 5) and (4, 5) Slope: 0
Points: (3, 4) and (5, 4) Slope: (4-4)/(3-5) = 0 There is no slope and it is a straight line parallel to the x axis
Points: (1, 7) and (-3, 2) Slope: 5/4 or 1.25
Slope = (change_in_y) / (change_in_x) = (4 - 3) / (5 - 0) = 1/5 = 0.2
Points: (-3, -5) and (4 -2) Slope: (-2- -5)/(4- -3) = 3/7
Points: (5, 0) and (3, -4) Slope: 2
Points: (-3, 5) and (5, 3) Slope: -1/4
If you mean points of (5, -9) and (2, 3) then the slope is -4
Points: (-3, -5) and (4, -2) Slope: 3/7
Points: (4, 5) and (-2, -4) Slope: 3/2
Slope = [(-2) - 3]/(7 - 4) = -5/3
Points: (5, -1) and (2, -5) Slope: 4/3 Perpendicular slope: -3/4