tentukan (-2,2) gradien -3

Bab Persamaan Garis
Matematika SMP Kelas VIII

(x1, y1) = (-2, 2)
m = -3

y = m (x - x1) + y1
y = (-3) . (x - (-2)) + 2
y = (-3) . (x + 2) + 2
y = -3x - 6 + 2
y = -3x - 4