Solution:
Given:
[tex]\begin{gathered} x<4 \\ (-\infty,4) \\ \\ In\text{ set notation;} \\ \lbrace x|-\infty
Therefore, in set notation, the inequality x < 4 is;
[tex]\lbrace x\lvert-\infty\lt x\lt4\rbrace[/tex]
Since it is less than 4, notice the circle drawn at the point 4 is not bolded or shaded.
The circle is OPEN
Hence, the graph is shown;
