Find the vertex of the function. Write your answer in the form (x,y). Use the slash mark as a fraction bar if necessary.


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  1. 0=2x-1
    x=1/2, y=1/4-1/2-23=-23.75

    That is with Calculus. Now in Algebra, do this

    y=x^2-x + xxxx -23-xxxxx
    we are going to make a difference of prefect squares.

    y=x^2-x+1/4 -23-1/4

    y= (x-1/2)^2 - (sqrt22.75)^2
    so clearly, this is a minumum at x=1/2

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