Answer
$\bf \color {blue}{(3,0),(4,1),(7,2)}$
Work Step by Step
$$\bf{y = \sqrt{x - 3}}$$
$\bf \text{Lets plug in numbers to find three points}$
if $y=0$:
$0 = \sqrt{x - 3}$
$0 = x - 3$
$x = 3$
$\bf \color {blue}{(3,0)}$
if $y=1$:
$1 = \sqrt{x - 3}$
$1 = x - 3$
$x = 4$
$\bf \color {blue}{(4,1)}$
if $y=2$:
$2 = \sqrt{x - 3}$
$4 = x - 3$
$x =7$
$\bf \color {blue}{(7,2)}$
So three of the points are:
$\bf \color {blue}{(3,0),(4,1),(7,2)}$
Which we can graph: