Question

What is the vertex for the graph of y = −2x2 + 8x − 13?

Answer 1

You need to complete the square so you have it in the form: \[
y=a(x-h)+k
\]Then you'll know the vertex because \((h,k)\) is the vertex.

Answer 2

That should be: \[
y=a(x-h)^2+k
\]

Answer 3

(2, −5) is ths the answer?

Answer 4

Let me think...

Answer 5

What is \(y\) when \(x=2\)?

Answer 6

Okay it looks right.

Answer 7

okay thanks.