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y-y1=m(x-x1)
y-1 =(-2/3)(x-2)
3y-3=-2x+4
2x+3y-7=0
(a=2, b=3, c=-7)
jadi, a kuadrat+ b kuadrat +c= (2x2)+(3x3)+(-7) = 6
jadi jawabannya adalah 6