## University Calculus: Early Transcendentals (3rd Edition)

$\mathrm{See\:the\:graph\:below.}$
$y=\sqrt{9-x}$ $y=\sqrt{-x+9}$ $y=\sqrt{-(x-9)}$ This is basically the graph of $\ y=\sqrt{-x}\$ shifted $\ 9\$ units to the right.