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Verified answer
Kelas 8 MatematikaBab Persamaan Garis
ax + by + c = 0, tegak lurus, (p, q)
bx - ay - (bp - aq) = 0
-5x + 3y + 12 = 0, tegak lurus, (5, -6)
3x + 5y - (3 . 5 + 5 . -6) = 0
3x + 5y - (15 - 30) = 0
3x + 5y + 15 = 0