The midpoint of AB is M(1, -4)M(1,−4). If the coordinates of A are (-3, -6)(−3,−6), what are the coordinates of BB?

Question

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Answer 1

A (-3,-6)= one endpoint

M (1,-4)= midpoint

B (5,-2) = the other endpoint

the x coordinate of the midpoint is the average of the A and B x coordinates: (-3+5)/2 =2/2 = 1

the y coordinate of the midpoint is the average of the A and B y coordinates: (-6-2)/2 =-8/2= -4