Whats the axis of symmetry? willing to give 15 points

The axis of symmetry of a parabola in the form

is a vertical line

where k is the x coordinate of the vertex of the parabola.

The x coordinate of the vertex of the parabola is given by

which in your case is

So, the axis of symmetry is the line x=12.

mia khalifa

step-by-step explanation:

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72