Question

How do you graph the inequality $x<3$?

Answer 1

The graph below shows the inequality $x<3$.
Explanation:
All points that lie in the shades area satisfy the equation $x<3$.
In other words, $x$ can take any value less than $3$.
$x\ne 3$ or any number that is greater than $3$.
Since there is strict inequality ,i.e. $x<3$, the points that lie on the line $x3$ will not satisfy the equation.
Therefore, a dotted line is used to mark $x=3$.