How do find the vertex and axis of symmetry, and intercepts for a quadratic equation #y=x^2+3x-5#?
You have several approaches available.
Let me show you a quick way of determining the axis of symmetry.
Standardised form of
This is the beginnings if completing the square
Another way is the determine the x-intercepts (if there is any) the axis of symmetry is 1/2 way between those 2 points.
Just to check the axis of symmetry
This occures at