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Verified answer
Kelas 8 MatematikaBab Persamaan Garis
ax + by = c, tegak lurus, (p, q)
bx - ay = bp - aq
2x - 5y = 6, tegak lurus, (-2, -1)
-5x - 2y = -5 . (-2) - 2 . (-1)
-5x - 2y = 10 + 2
2y = -5x - 12