Question

The midpoint of AB is )M(7,−5). If the coordinates of A are (6,−7), what are the coordinates of B?

Answer 1

Answer:

B(8, -3)

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Step-by-step explanation:

A(6, -7); B( x, y); M(7;-5)

x=7×2-6=8

y=-5×2-(-7)=-3

Answer 2

Answer:

(8,-3)

Step-by-step explanation:

mid point formula for graph:

$(\frac{x_{1}+ x_{2} }{2} ,\frac{y_{1} +y_{2} }{2} )$

$(\frac{6+x}{2} ,\frac{-7\\+y}{2} )$

$\frac{6+x}{2} =7$

$x$ is the x cordinate of B which will be

8

TO FIND Y:

$\frac{-7\\+y}{2} =-5$

$y=-3$