71. answer is zero (0).
72. answer is negative six (6)
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Answer: The answer is B.
Step-by-step explanation:
Answer:
Here the answer LOL
Step-by-step explanation:
Answer:
Your question does not make sense.
Step-by-step explanation:
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.