Emily gets paid to recruit people to join an email list at work. If she signs up 5 friends and they all sign up 5 more friends, the function y = 5^x represents the number of new people on the email list after so many cycles. Select all the key features that apply to y = 5^x
A) The domain is all real numbers. The relevant domain is all nonnegative integers.
B) The domain and relevant domain are both {x >= 0}.
C) The range is all real numbers.
D) the y-intercept is 1.
E) The y-intercept is 5.
F) As x increases, y increases; and, as x decreases, y approaches 0.