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# Vertex

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I've heard that in the quadratic form of $$ax^2 + bx + c$$$$\frac{-b}{2a}$$ is the vertex of the parabola. Can somebody explain why that works? Thanks!

AnxiousLlama

May 12, 2021

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I found these articles that helped me understand your question. I hope they will help you, too.

https://www.purplemath.com/modules/sqrvertx2.htm

May 12, 2021
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As follows:

May 12, 2021
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Brilliant!

HighSchoolDx  May 12, 2021