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The two point form of a line is ...

y - y1 = (Y2 - Y1)/(X2 - X1)(X - X1)

... so, plugging in for (-4,3) and (8,-1), we get

y - 3 = (-1 - 3)/(8 - -4)(x - -4)

which simplifies to

y - 3 = -4/12 (x + 4)

y - 3 = -4x/12 - 16/12

y = -x/3 - (16+48)/12

y = -1/3x - 16/3

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13y ago

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