Select all the correct statements. (For this problem, we assume that an exponential function is of the form $ka^x,$ where $a > 0.$)
(A) If the graph of an exponential function is reflected in the x-axis, then we obtain the graph of another exponential function
(B) If the graph of an exponential function is reflected in the y-axis, then we obtain the graph of another exponential function
(C) If the graph of an exponential function is translated vertically, then we obtain the graph of another exponential function.
(D) If the graph of an exponential function is translated horizontally, then we obtain the graph of another exponential function