y = mx + b
m is the slope, b is the y intercept
If you mean (-6, -4) and (-4, 8) then the slope of the line is 6
To find the slope between two points: slope = change_in_y/change_in_x Thus for the points (4, 5) and (6, 8), the slope between them is given by: slope = (8-5)/(6-4) = 3/2 = 1½ = 1.5
The slope is [2 - (-4)]/[-6 -2] = 6/-8 = -3/4
Points: (6, 8) and (4, -3) Slope: (-3-8)/(4-6) = 11/2 or 5.5
The slope is dy/dx = 8/4 = 2
Points: (6, -4) and (3, 4) Slope: -8/3
Points: (-6, 4) and (3, -4) Slope: -8/9
The slope is (y2 - y1)/(x2 - x1) That is in this case (-6 + 6)/(4 +4) = 0/8 = 0
Points: (6, 4) and (6, 8)Slope: 0 because it is a vertical straight line that is parallel to the y axis
EQ2
If the points are (2, 1) and (-6, -4) then the slope works out as 5/8
(3--4)/2--6) = 7/8 which is the slope of the line.