Graph f(x)=-x+2,x<0; square root of x+3,x>=0

$f (x) = {\begin{cases} - x + 2, x < 0 \\ \sqrt{x} + 3, x \geq 0 \end{cases}$

Graph.

$f (x) = {\begin{cases} - x + 2 & x < 0 \\ \sqrt{x} + 3 & x \geq 0 \end{cases}$