Respuesta :

=Answer:

The coordinate of A is (8,-12)

Step-by-step explanation:

Let the coordinate of A be (x1, y1)

and the coordinates of M is (3,-4) and B is (-2,4)

SInce the midpoint of AB is M

Therefore,

Midpoint of AB = [tex](\frac{x_{1}+x_{2}}{2},\frac{y_{1}+y_{2}}{2} )\\[/tex]

[tex](3,-4) = (\frac{x_{1}-2}{2},\frac{y_{1}+4}{2} )\\[/tex]

Comparing both sides, we get:

[tex]3=\frac{x_{1}-2}{2}\\ 6=x_{1}-2\\x_{1}=6+2\\x_{1}=8[/tex]                          [tex]-4=\frac{y_{1}+4}{2} \\-8=y_{1}+4\\-8-4=y_{1}\\y_{1}=-12[/tex]

Therefore the coordinate of A is (8,-12)

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