Kawan tolong dibantu ya sama caranya juga.

11) 2x + 8y + 3 = 0
8y = - 2x - 3
m = -2/8 = - ¼

m = (y2 - y1) / (x2 - X1)
m = ( -4 + 7) / (8 + 2)
m = 3 / 10

12) g) y - y1 = m (x - X1)
y + 4 = - 2 (x - 2)
y = - 2x + 4 - 4
y = - 2x

h) (y - y1) / (y2 - y1) = (x - X1) / (x2 - X1)
(y - 1) / (-1 - 1) = (x + 2) / (-1 + 2)
(y - 1) / (-2) = (x + 2) / 1
1 (y - 1) = (-2) (x + 2)
y - 1 = - 2x - 4
y = - 2x - 4 + 1
y = - 2x - 3

i) 3x - 2y + 1 = 0
- 2y = - 3x - 1
m = - 3/ - 2 = 3/2
sejajar m1 = m2 = 3/2
y - y1 = m (x - X1)
y - 1 = 3/2 (x - 5)
y = 3/2 x - 13/2 + 1
y = 3/2 x - 11/2
2y = 3x - 11