Weegy: f(x) = 4^x is an exponential curve (I'm hoping you're familiar with these by now) which goes through (0, 1), (1, 4), (2, 16) going to the right of the y-axis.
To the left of the y-axis, [ the curve approaches closer and closer to the x-axis without ever reaching it (so we have a horizontal asymptote y = 0).
Domain: All real numbers. (There is no value x cannot be, because we can take a given number to any real number).
Range: (0, infinity)
Asymptote: y = 0. source: yahoo ] (More)

There are no comments.