Question

Persamaan garis yang melalui titik A (-4, 3) dan B (2, -5) adalah...

Answer 1

(y-y1)/(y2-y1) = (x-x1)/(x2-x1)
(y-3)/(-5-3) = (x+4)/(2+4)
(y-3)/-8 = (x+4)/6
6y-18 = -8x-32
8x+6y-18+32 = 0
8x+6y+14 = 0

Answer 2

=  = 
pers.garis y + 5 = -4/3(x - 2)
               y + 5 = -4x/3 + 8/3
               3y + 15 = -4x + 8
                -4x + 3y + 7 = 0