standard form is ax +by = c
so0o how do u write an equation in standard form for the line that contains each pair of points like:
1. (3,8), (6,4)
2. (-2, -1), (2,2)
Standard form??
find the slope (y2-y1)/(x2-x1)
(4-8)/(6-3) = -4/3
now pick a point to use (3,8)
and use point-slope y-y1 = m(x-x1)
y-8 = -4/3 (x-3)
clear the fraction by multiplying by 3
3y - 24 = -4x + 12
now get x and y on one side and everything else on the other
4x + 3y = 36
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