Answer
a) See graph
b) $x=-5.5$
Work Step by Step
We are given the function:
$f(x)=\sqrt{2x+11}$
a) Graph the function.
From the graph the zeros are:
$x=-5.5$
b) Determine the zeros algebraically:
$f(x)=0$
$\sqrt{2x+11}=0$
$2x+11=0$
$2x=-11$
$x=-5.5$
