m(slope) = Y2 - Y1/X2 - X1
(4, 2) and (- 2, - 1)
m = - 1 - 2/- 2 - 4
= - 3/- 6; 3/6; 1/2
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Points: (0, -1) and (-2, -4)Slope: 3/2
Points: (-1, 2) and (4, 3) Slope: 1/5
Points: (3, 2) and (-1, -4) Slope: (2--4)/(3--1) = 3/2 or 1.5
Points: (3, -4) and (-2, 1) Slope: -1 or -x
Points: (2, 1) and (-4, -5) Slope: (1--5)/(2--4) = 1
Points: (-10, -4) and (-1, 2) Slope: 2/3
The slope is -1 - 4 / -2 - 2 = -5/ -4 = 5/4
Points: (-1, 2) and (4, 3) Slope: 1/5
Points: (3, 2) and (-1, -4) Slope: (2--4)/(3--1) = 3/2 or 1.5
Points: (3, -4) and (-2, 1) Slope: -1 or -x
Points: (-3, 4) and (1, -2) Slope: (4--2)/(-3-1) = -3/2 or -1.5
Points: (2, 1) and (-4, -5) Slope: (1--5)/(2--4) = 1
Points: (1, 7) and (-3, 2) Slope: 5/4 or 1.25
If the line has a slope of 2, then the perpendicular line has a slope of -1/2. The slope of a perpendicular line is the negative reciprocal. Another example would be if the slope of a line is -1/4, then the slope of the perpendicular is 4.
Points: (3, 4) and (2, 1) Slope: 3
Points: (-3, 1) and (2, 4) Slope: (4-1)/(2- -3) = 3/5
If you have a pair of coordinates you can find the slope then put it into either point slope or slope intercept form. (2,3) and (5,4) has a slope of (3-2)/2-4) or 1/-2 or -1/2 Then you can put that in y-3=-1/2(x-2) as point slope or y=-1/2(x) + b 3=-1/2(2) + b 4=b therefore y=-1/2x+4