Coordinates

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The midpoint of rectangle PTQW is (-0.5,6). The coordinates of P are (-3.5,6). What are the coordinates of Q?

  • Coordinates -

    let the other end point be (x,y)
    so (x-3.5)/2 = -.5
    x-3.5 = -1
    x = 2.5

    (y+6)/2 = 6
    y+6 = 12
    y = 6

    other point is (2.5 , 6)

  • Coordinates -

    Thanks so much.....ur rite!

  • Coordinates -

    Ok, one more question. U see when u have (x-3.5)/2 = -.5
    x-3.5 = -1 (how did u get -1)

  • Coordinates -

    @enno , there is -1 because :

    we had : (x-3.5)/2 = -.5

    multiplying 2 both sides

    (x-3.5)/2 *2 = -.5 *2

    x-3.5 = -1

    and then you can proceed easily.

    if a/b = c

    then a = bc

    I hope it helped u though I helped u 1 year later :P

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