Asked by Ted
one endpoint of a line segment has coordinates(-3,-1). The midpoint of the line segmaent is at (1,1), what is the location of the other end point?
Answers
Answered by
y912
you use the midpoint formula to find the midpoint, but since you already know the midpoint, and one of the endpoints, plug in what you know in to the formula, and solve for the other endpoint.
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Answered by
Reiny
let the other endpoint be (a,b)
then (a-3)/2 = 1 and (b-1)/2 = 1
a = 5 and b = 3
test it by finding the midpoint between (5,3) and (-3,-1)
then (a-3)/2 = 1 and (b-1)/2 = 1
a = 5 and b = 3
test it by finding the midpoint between (5,3) and (-3,-1)
Answered by
Ted
Thanks a lot, i think you are very smart reiny
Answered by
Ted
thanks for your help y912
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