anonymous
  • anonymous
Is the function quadratic? Explain.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Directrix
  • Directrix
Definition of a Quadratic Function A function f is a quadratic function if f(x) = ax+ bx + c, where a, b, and c are real numbers, with a not equal to 0.
anonymous
  • anonymous
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Directrix
  • Directrix
I used an online curve of best fit calculator to get that the function is quadratic with a best fit quadratic equation of y = 3x^2 - 9. http://science.kennesaw.edu/~plaval/applets/QRegression.html

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Directrix
  • Directrix
@isagg --> the simplest and easy to follow thing to do is the plot the given points on a sheet of graph paper and see if you notice a parabolic shape made by the points.

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