Consider the given function.
f(x) = x^2 -14x -72
What are the zeros and axis of symmetry for the graph of the function?
A.
zeros: x = -9 and x = -8;
axis of symmetry: x = -7
B.
zeros: x = -18 and x = 4;
axis of symmetry: x = -7
C.
zeros: x = 9 and x = 8;
axis of symmetry: x = 7
D.
zeros: x = -4 and x = 18;
axis of symmetry: x = 7