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Verified answer
Kelas 8 MatematikaBab Persamaan Garis
ax + by + c = 0, tegak lurus, (p, q)
bx - ay = bp - aq
2x - 3y - 4 = 0, tegak lurus, (1, 3)
-3x - 2y = -3 . 1 - 2 . 3
-3x - 2y = -3 - 6
-3x - 2y = -9
3x + 2y = 9