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The perpendicular bisector of the line segment connecting the points $(-3,8)$ and $(-5,4)$ has an equation of the form $y = mx + b$. Find $m+b$.

 Jul 6, 2020
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Midpoint = (-4,6)

Slope = (4 - 8)/(-3 - 5) = 1/2

Perpendicular bisector: y - 6 = -2(x + 4) = -2x - 8

==> y = -2x - 2

m + b = -4

 Jul 6, 2020

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