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Algebra

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How do I read the equation (function) y=-0.03x^2+0.14x+1.43?

Do I have to complete the square to find the vertex, max., min., etc.? This function is part of a word problem that I am trying to do. I would appreciate any help.

  • Algebra -

    Well, you could multiply everything by 100 to get an easier function:

    y=-3x^2+14x+143
    in which you could try and use the quadratic theorem

    [-b +/- sqrt(b^2-4ac)]/2a

    Giving you:

    -14 +/- sqrt(196-(-1716)/-60

    [-14 +/- sqrt(1912) ]/-6
    You cant simplify too much. But you get the idea from here. Is this the answer you were looking for?

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