The graph shown below expresses a radical function that can be written in the form f(x) = a(x + k)1/n + c. What does the graph tell you about the
value of a in this function?
O A. a is greater than zero.
OB. It is not possible to tell whether a is greater than or less than zero.
ОО
C. a is less than zero.
O D. a = 1