Question

Tentukan persamaan garis yang melalui titik A (2.0) dan titik B (0.4)

Answer 1

(y - 0)/(4 - 0) = (x - 2)/(0 - 2)
y/4 = (x - 2)/-2
-2y = 4x - 8
4x + 2y - 8 = 0

Answer 2

M = (4 - 0) / (0 - 2) = -2
Persamaan garis:
y - 0 = -2 (x - 2)
<-> y= -2x + 4
<-> 2x + y - 4 = 0