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2x-3y-6=0
=>2x - 3y = 6
a=2 dan b=-3
=>M=-a/b
=>M=>-2/-3
M=>2/3
jadi,persamaan garis lurus
Y-Y1=M(X - X1)
Y -(-4)= 2/3(x-2)
Y+4=2/3(x-2)
Y+4=2/3x-4
Y-2/3x=-4-4
Y-2/3x=-8