May 2021 0 31 Report
25. Perhatikan persamaan garis berikut. I. x + 4y + 8 = 0
II. 4x + y - 12 = 0
III. x - 4y + 6 = 0
IV. 4x -2y -12 = 0

Persamaan garis saling tegak lurus adalah ...

A. I dan II
B. II dan III
C. I dan III
D. III dan IV

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