Question

graph and label the focus, directrix and vertex of
y=x^2+6x-4

Answer 1

get it in this form by completing the square:
y-k = 4*a*(x - h)^2

where (h, k) is your vertex. a is the disance from your vertex to your focus. it is also the distance to your directrix but in the opposite direction from your focuas

Answer 2

how do i find my vertex?

Answer 3

let's complete the square...

what should go in the blank to complete the square?