Answer
The lines intersect at (2,6).
Work Step by Step
Find and graph 3 points for each equation.
$\underline{\ x\ \ \ \ \ \ \ \ \ \ \ \ 3x\ \ \ \ \ \ \ \ \ \ \ \ \ y\ \ }$
$-1\ \ \ \ \ \ \ 3(-1)\ \ \ \ \ -3$
$\ \ \ 0\ \ \ \ \ \ \ \ \ 3(2)\ \ \ \ \ \ \ \ \ \ \ \ 6$
$\ \ \ 1\ \ \ \ \ \ \ \ \ 3(1)\ \ \ \ \ \ \ \ \ \ \ \ 3$
$\underline{\ x\ \ \ \ \ \ \ \ \ \ \ \ x+4\ \ \ \ \ \ \ \ \ \ y}$
$-6\ \ \ \ \ -6+4\ \ \ \ \ -2$
$-2\ \ \ \ \ -2+4\ \ \ \ \ \ \ \ \ \ 2$
$\ \ \ 1\ \ \ \ \ \ \ \ \ \ 1+4\ \ \ \ \ \ \ \ \ \ 5$
The lines intersect where x=2 and y=6.
When x=2, 3x=6.
When x=2, x+4=6.
