1. carilah persamaan garis lurus yg melalui titik A(1,3) dan sejajar dg garis berikut a. 7x - 4y + 3 = 0 2. carilah persamaan garis lurus yg melalui titik A(1,3

1) 7x - 4y + 3 = 0
- 4y = - 7x - 3
y = 7/4 x + ¾
m1 = m2 = 7/4
y - y1 = m (x - x1)
y - 3 = 7/4 (x - 1)
y - 3 = 7/4 x - 7/4
---------------------------(×4)
y = 7x - 7 + 12
y = 7x + 5

2a) m1 = m2 = 3
y - 3 = 3(x - 1)
y = 3x - 3 + 3
y = 3x

b) 12x + 3y - 7 = 0
3y = - 12x + 7
y = - 4x + 7/3
m1 = m2 = - 4
y - 3 = - 4(x - 1)
y = - 4x + 4 + 3
y = - 4x + 7

c) 2x + y = 10
y = - 2x + 10
m1 = m2 = - 2
y - 3 = - 2(x - 1)
y = - 2x + 2 + 3
y = - 2x + 5