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Brainly!!!!!

Point M is the midpoint of AB the coordinates a point A are (-7,1) and the coordinates of M are (-1,2) what are the coordinates of point B?

Respuesta :

Answer:

Step-by-step explanation:

let co-ordinates of B are (x,y), then

[tex]\frac{-7+x}{2} =-1\\-7+x=-2\\x=-2+7=5\\\frac{1+y}{2} =2\\1+y=4\\y=4-1=3[/tex]

so B is (5,3)

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