January 2019 1 9 Report
Diketahui persamaan - persamaan garis berikut :
(i) y = 3/4 x + 5
(ii) 3x + 2y = 8
(iii) 2x + 3y - 12 = 0
(iv) 6x - 4y + 2 = 0

yang merupakan pasangan garis yang saling tegak lurus adalah...

a.(i) dan (ii)
b.(ii) dan (iii)
c.(ii) dan (iv)
d.(iii) dan (iv)

tolong yang bisa jawab :)
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