#### Answer

Refer to the image below for the graph.

#### Work Step by Step

To graph the given line using the slope and y-intercept, perform the following steps:
(1) Solve for the x and y intercepts.
To find the x-intercept, set $y = 0$, and then solve for $x$:
$x-y=3
x-0 = 3
\\x=3$
This means that the x-intercept is at $(3, 0)$.
To find the y-intercept, set $x = 0$, and then solve for $y$:
$x-y = 3
\\0-y=3
\\-y=3
\\y=-3$
This means that the -intercept is at $(0, -3)$.
(2) Plot the intercepts, and then connect them using a line.
(Please refer to the attached image in the answer part above for the graph.)