Tentukan persamaan garis yang melalui titik (5,-2) dan (-5,5)

y - y1 / y2 - y1 = x - x1 / x2 - x1
y - (-2) / 5 - (-2) = x - 5 / -5 - 5
y + 2 / 7 = x - 5 / -10
-10y - 20 = 7x - 35
-10y = 7x - 35 + 20
-10y = 7x - 15

Y-y1/ y2-y1 = x-x1 / x2-x1
Y-(-2) / 5-(-2) = x-5/-5-5
y+2/7 = x-5/-10
-10(y+2) = 7(x-5)
-10y-20 = 7x-35
-7x-10y = -15
Atau
7x+10y = 15