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melalui titik (2,3)
Jawab:
y-y1=m(x-x1)
y-3=-3/4(x-2)
y-3=-3/4x+3/2
y=-3/4x+3/2+3
y=-3/4x+4 1/2
y-y1 = m(x-x1)
y-3 = -3/4(x-2)
4(y-3) = -3(x-2)
4y-12 = -3x +6
3x + 4y -18 = 0