Question: Let () = 2 2 + 16x + 21 1) Write () in vertex form. 2) State the vertex of () (if you did #1

Let () = 22 + 16x + 21

1) Write () in vertex form.

2) State the vertex of () (if you did #1 correctly this will be easy, but even if you blanked on #1 there is a way to do this).

3) Does the graph of () open up or down, and why? No explanation, no points.

please show steps, thank you!

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