geometry

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I was assiged a 44 question assigment and I really need some help.I'm stuck on this question:
"Find the coordinates of S for RS if Q is the midpoint and R is an endpoint.
Q(-6,-5),R(-4,4)

  • geometry -

    let the other endpoint be (x,y)

    then (x-4)/2 = -6
    x-4 = -12
    x = -8

    (y+4)/2 = -5
    y+4 = -10
    y = -14

    the other endpoint is (-8,-14)

    check by taking the midpoint between
    (-8,-14) and (-4,4)

  • geometry -

    Thanks for your help!!!

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