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Math Help - quadratic functions stops my function

  1. #1
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    quadratic functions stops my function

    find the quadratic function whose vertex lies at the point -4,2 and passes through the points -2,6
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  2. #2
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    Oct 2008
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    The vertex is at (-4, 2), so you know this is a maximum or minimum point. Your next given point is (-2, 6), and this is obviously higher up on the graph than your vertex. This tells you that the vertex is a minimum for the graph.

    y= (x-b)^2+c will be your general equation where b is how much you move to the right (negative if you move to the left) and c is how far up you translate (negative if down).

    So just use your vertex to move your graph, namely y= (x+4)^2+2
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