Answer
Domain $[0,\infty)
$
Range $[-\infty, 1]$
Work Step by Step
Domain: All $x$ values have to be positive. Any values for $x$ that are not positive, thus being negative, will result in an imaginary number.
Range: Insert the first domain value into the function, in this case, being 0, and get that value. The output will be 1. Any other values as X approaches infinity will be negative. They are negative because they are being subtracted from 1.