Question

What is the equation of the axis of symmetry of y=-(1/2)x^2+4x+6?

Answer 1

what is the vertex?

Answer 2

It doesnt have a vertext.

Answer 3

sure it does
if we have an equation of the form y=ax^2+bx+c
then
\[x=\frac{-b}{2a}\]is the x coordinate of the vertex

Answer 4

this will also the the equation for the line of symmetry

Answer 5

It still looks confusing. And i don't understand it.