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-1-7 10+4
y-7 = x+4
-8 14
14(y-7) = -8(x+4)
14y-98 = -8x-32
14y = -8x-32+98
14y = -8x+66
y = -8x+66 =-2x+33
14 7
y₂ -y₁ x₂ -x₁
y -7 = x -(-4)
-1 -7 10 -(-4)
y -7 = x +4
-8 14
14(y -7) = -8(x +4)
14y -68 = -8x -32
14y = -8x -32 +68
14y = -8x +36
atau
8x +14y -36 = 0