## Precalculus (6th Edition) Blitzer

$f(x)=\log_{\frac{1}{2}}x$: The red graph $g(x)=-2\log_{\frac{1}{2}}x$: The blue graph
$x=0$ is the vertical asymptote for the function $f$. $x=0$ is the vertical asymptote for the function $g$. The domain of the functions are$$D_f=(0, \infty ), \qquad D_g = (0, \infty ).$$The range of the functions are$$R_f=(- \infty, \infty ), \qquad R_g=(- \infty, \infty ).$$