Answer:
2x10=20 X=2
Step-by-step explanation:
Please mark brainliest
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.
Is would be a I think because if you times those to numbers you get 20