FINDING ENDPOINT

Question

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

Answer 1

If the co-ordinates of a line segment are (a,b) and (c,d), the co-ordinates of the midpoint are

[(a+c)/2,(b+d)/2)].

You should be able to plug in the values from the problem and get the answer.

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