Question

Identify the vertex for the graph of y = −3x2 − 6x + 4

Answer 1

You can take this to faith, but... when you have a quadratic equation of the form
\[\huge ax^2+bx+c\]Then its vertex is at the point
\[\huge \left(-\frac{b}{2a} \ \ , \ \ \frac{4ac-b^2}{4a}\right)\]
Or, you could just get this...
\[\Large -\frac{b}{2a}\]And evaluate your equation with x equal to this... that'd be the y-value of the vertex

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