Question

Persamaan garis yang melalui titik (-2,5) dan sejajar garis x-3y + 2 = 0

Answer 1

Cari m
m = -a/b
= -1/-3
= ⅓

m1 = m2 karena //
m2 = 1/3

Pake rumus y - y1 = m(x - x1)
y - 5 = 1/3(x + 2)
--------------------------- x 3
3y - 15 = x + 2
0 = x + 2 - 3y + 15
x - 3y + 17 = 0

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