Question

Persamaan garis yg melalui garis ( 3, 6 ) tegak lurus dengan 2y = 6x + 8

Answer 1

M = -b/a
m = -6/2
m = -3
karena tegak lurus :
m1.m2 = -1
-3 .m2 = -1
m2 = 1/3
persamaan :
y-y1 = m(x-x1)
y-6 = 1/3(x-3)
y = 1/3x -1 + 6
y = 1/3x +5