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    steffimalcampo91's Avatar
    steffimalcampo91 Posts: 21, Reputation: 1
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    #1

    Jun 30, 2007, 02:00 AM
    determining equations of quadratic functions 3
    find the equation of the parabola(the picture)
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    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #2

    Jun 30, 2007, 07:54 AM
    You may wish to post some of your thoughts so we know where you're hung up.
    steffimalcampo91's Avatar
    steffimalcampo91 Posts: 21, Reputation: 1
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    #3

    Jun 30, 2007, 06:56 PM
    Quote Originally Posted by galactus
    You may wish to post some of your thoughts so we know where you're hung up.
    I don't know how to solve this problem.. I need a step-by-step process
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    galactus Posts: 2,271, Reputation: 282
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    #4

    Jul 1, 2007, 04:28 AM
    There's not enough info. What's the x value of the vertex? 1, perhaps. All I see is a y value.

    Let's say it is 1. The vertex has coordinates (1,-2) and the parabola passes through (2,0).

    You can use

    (h,k) is the coordinates of the vertex and (x,y) is the point it passes through. Enter your values and solve for 'a'.
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