Final answer:
To represent the inequality x<4 on a number line, you use an open dot at 4 (not inclusive) and shade to the left, indicating all values less than 4 are in solution set
Step-by-step explanation:
To plot the inequality x<4 on a number line, you start by drawing the number line. Then, you mark the number 4 on the number line. Since the inequality is x<4, which means all values of x are less than 4, you will use an open dot at 4. This represents the fact that 4 is not part of the solution set to the inequality. The values less than 4 are accepted, so you will shade or highlight the number line to the left from 4. This way, the open dot and the shaded area to the left of 4 demonstrates the solution to the inequality.
Learn more about Plotting inequality