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.
Answer:
Amount of sales tax = $3.51
Step-by-step explanation:
$13.50 x 4 = $54
convert 6.5% to 0.065 ===> 6.5/100 = 0.065
$54 x 0.065 = $3.51
Answer:
4^4/4^4 =1
Step-by-step explanation:
The final answer is (7r^2 - 6) (7r + 6)
Answer:
If the sequence has a common difference, it's arithmetic. If it's got a common ratio, you can bet it's geometric