Answer:
d x 7 = 105
Step-by-step explanation:
Answer:
where is the statement?????!!!
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.