persamaan garis yang melalui titik (2,3) dan (-3,5)adalah

y-y1/y2-y1 = x-x1/x2-x1
y-3/5-3 = x-2/-3-2
y-3/2 = x-2/-5
-5(y-3) = 2(x-2)
-5y+8 = 2x-4
-2x-5y = -4-8
-2x-5y = -12
-1(-2x-5y) = -1 x (-12)
2x+5y = 12

*semoga membantu. sukses selalu ^_^