Question

The graph of which quadratic equation is shown below?

y = x2 + 6x − 5

y = x2 − 6x − 5

y = −x2 − 6x − 5

y = −x2 + 6x − 5

Answer 1

Since it opens down, you know it is either C or D.

Answer 2

has to be one of the last two
pick the one that has vertex (3,4)

Answer 3

\(y = −x^2 + 6x − 5\) first coordinate of the vertex is \(-\frac{b}{2a}=-\frac{6}{2\times (-1)}=3\) so it is this one

Answer 4

This is the graph of C.

This isn't the right graph, so the answer is D.

Answer 5

thank you!

Answer 6

You're welcome. :)