Persamaan garis yang tegak lurus garis 3x + 2y - 5 = 0 dan melalui titik (0,3) :
3x + 2y - 5 = 0
2x - 3y = 2(0) - 3(3)
2x - 3y = -9
2x - 3y + 9 = 0
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Persamaan garis yang tegak lurus garis 3x + 2y - 5 = 0 dan melalui titik (0,3) :
3x + 2y - 5 = 0
2x - 3y = 2(0) - 3(3)
2x - 3y = -9
2x - 3y + 9 = 0
gradien tegak lurus m=2/3
persamaan garis
y-y1=m(x-x1)
y-3=2/3(x-0)
y-3=2/3x
y=2/3x+3