Question

Persamaan garis yang melalui titik (-2,4) dan (-1,6) adalah....

Answer 1

(x1, y1)= (4,1)
(x2, y2) = (6, -2)
Dicari gradien (m) terlebih dahulu
m = (y2 - y1) / (x2 - x1)
m = (-2 - 1) / (6 - 4)
m = -3 / 2

Persamaan garis: y - y1 = m (x - x1)
y - 1 = -3/2 (x - 4)
y - 1 = (-3/2)x + 6
y = (-3/2)x + 6 +1
y = (-3/2)x + 7

Maaf kalau salah