You can
put this solution on YOUR website!Symmetry means that it looks the same on both sides of the axis.
Do you know the quadratic formula? That's how I figure out the
axis of symmetry. The formula is:

rewite it as

The first term is the axis of symmetry, and the 2nd term gives you a
value of x on the = side and one on the - side
So find

The equation is

This is in the form

x = -5/2 is the axis of symmetry