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→top: not the place to explain what is the degree two, especially when the case of several variables is not excluded |
→top: fixing wording: "sharp curve" is undefined, and the figure does not show the axis of symmetry |
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:<math>f(x)=ax^2+bx+c,\quad a \ne 0</math>
in the single variable ''x''. The [[graph of a function|graph]] of a univariate quadratic function is a
If the quadratic function is set equal to zero, then the result is a [[quadratic equation]]. The solutions to the univariate equation are called the [[root of a function|root]]s of the univariate function.
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