### Important Properties of Quadratic Functions

**Quadratic Functions Definition : **The standard form of a quadratic function is f(x) = ax^{2}+bx+c, where a = 0 and a, b, c are constants. The graph of a quadratic function is a U-shaped parabola. Whether the parabola opens upward or downward depends on the parameter ‘a’. The graphs below explain it!

**Example: **Find the intercepts of the parabola: f(x) = x^{2} -8x +15.

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