Question

Persamaan garis yg tegak lurus dengan garis g: 3x + 2y - 4 = 0 dan melalui titik (4,-3) adalah

Answer 1

3x + 2y - 4
m = -a/b
= -3/2

m1 × m2 = -1
-3/2 × m2 = -1
m2 = 2/3

y - y1 = m (x - x1)
y + 3 = 2/3 (x - 4) --> kali 3
3y + 9 = 2 (x - 4)
3y - 9 = 2x - 8
3y - 2x = -8 + 9
3y - 2x = 1