Answer
See graph.
Work Step by Step
$$y=\sqrt{x-3}$$
Substitute values for x to find their corresponding y-values.
$$y=\sqrt{3-3}$$
$$y=0$$
$$(3,0)$$
$$y=\sqrt{4-3}$$
$$y=1$$
$$(4,1)$$
$$y=\sqrt{7-3}$$
$$y=\sqrt4$$
$$y=2$$
$$(7,2)$$