Answer
Solution Set:
$y \lt 2$
Refer to the image below for the graph.
Work Step by Step
Add 2 on both sides of the inequality to obtain:
$y \lt 0+2
\\y \lt 2$
On a number line, the numbers that are less than $2$are found to the left of $2$.
Thus, to graph the solution set on a number line, plot a hole (or hollow dot) at $y=2$ and shade the region to its left. (refer to the attached image in the answer part above)