Question

help plz

Answer 1

So the best way to do this (in my opinion) is to simply work out what the problem was asking, and then figure out the steps you did. Any that match up with the options, select those.

So, do you remember the formula for the x-coordinate of the vertex?

Answer 2

\[\Large \frac{ -b }{ 2a }\]
The formula for the x-coordinate, which one looks like that?

Answer 3

thanks guys :)

Answer 4

Relevant: http://openstudy.com/updates/4e4056bd0b8bfb83f3cbf936