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Verified answer
2x + y + 5 = 0 »»»» m = -2/1 = -2Karena tegak lurus, maka m1.m2 = -1
(-2).m = -1 »»»» m = 1/2
Melalui (2,5) maka
Y - y1 = m (x - x1)
Y - 5 = 1/2 (x - 2)
2(y - 5) = x - 2
2y - 10 = x - 2
x - 2y + 8 = 0