Draw the graph of $x + y = 7$.

(N/A) To draw the graph of the linear equation $x + y = 7$,we need at least two solutions of the equation.
$1$. If we put $x = 0$,then $0 + y = 7$,which gives $y = 7$. So,$(0, 7)$ is a solution.
$2$. If we put $x = 7$,then $7 + y = 7$,which gives $y = 0$. So,$(7, 0)$ is a solution.
We can represent these solutions in the following table:

$x$	$0$	$7$
$y$	$7$	$0$

Now,plot the points $(0, 7)$ and $(7, 0)$ on a Cartesian plane and join them with a straight line to obtain the graph of the equation $x + y = 7$.