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3y=-2×+10
y=-2/3 + 10/3
Gradien = -2/3 karena tegak lurus gradiennya menjadi 3/2
y-y1=m(x-x1)
y+7=3/2(x-3) ----> kedua ruas dikali 2
2(y+7) = 3(x-3)
2y+14 =3×-9
2y-3x=-9-14
2y-3×= -13 / 2y-3×+13=0
=6+-21=10
=-15=10
maaf y klo salah