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Verified answer
Bab Persamaan GarisMatematika SMP Kelas VIII
A = (2, 3) → (x1, y1)
B = (4, 6) → (x2, y2)
(y - y1) / (y2 - y1) = (x - x1) / (x2 - x1)
(y - 3) / (6 - 3) = (x - 2) / (4 - 2)
(y - 3) / 3 = (x - 2) / 2
2 (y - 3) = 3 (x - 2)
2y - 6 = 3x - 6
3x - 2y = 0
ax + by = c, tegak lurus, (p, q)
bx - ay = bp - aq
3x - 2y = 0, tegak lurus, (5, 4)
-2x - 3y = (-2) . 5 - 3 . 4
-2x - 3y = -10 - 12
-2x - 3y = -22
2x + 3y = 22