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x1 = 2
y1 = -6
x2 = -3
y2 = 4
=
=
=
=
-5(y+6) = 10(x-2)
-5y - 30 = 10x - 20
5y = 20 - 30 - 10x
5y = -10 - 10x
y =
y = -2 - 2x ... (C)