**Graphing quadratics: standard form | Algebra (video) | Khan Academy**
https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratic-functions-equations/x2f8bb11595b61c86:standard-form-quadratic/v/graphing-a-parabola-using-roots-and-vertex

Graphing quadratics: standard form. CC Math: HSA.SSE.B.3, HSA.SSE.B.3a, HSA.SSE.B.3b, ... Features & forms of quadratic functions. ... is the point 3 comma 0. And so the last one I want to figure out, is this point right over here, the vertex. Now the vertex always sits exactly smack dab between the roots, when you do have roots. Sometimes you ...

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