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Verified answer
3y + 9x = 54gradien = m = -x/y = -9/3 = -3
Sejajar artinya m1=m2
Jadi garis P yang melalui titik (5,6) dan bergradien -3 adalah
y-y1=m(x-x1)
y-6=-3(x-5)
y - 6 = -3x + 15
3x + y = 15 + 6
3x + y = 21
Jadi garis p adalah 3x + y = 21
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