How to identify the vertex of a quadratic function

Plug the x-value into the original equation to get the y-value. Now that you know the x-value, just plug it in to the original formula for the y value. You can think of the formula for finding the vertex of a quadratic function as being (x, y) = [(-b/2a), f(-b/2a)].

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step-by-step explanation:

im not sure but my dad knows