Question #693

Please, find the coordinate of the other endpoint of a segment with the given endpoint and midpoint M:
R(2,6)
M(-1,1)

Expert's answer

Let (x,y) be the coordinates of other endpoint.

The expressions for the coordinate of midpoint are

(x+2)/2=-1 and (y+6)/2=1;

thus

x=-4; y=-4

The answer: L(-4,-4)

The expressions for the coordinate of midpoint are

(x+2)/2=-1 and (y+6)/2=1;

thus

x=-4; y=-4

The answer: L(-4,-4)

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