Graphing Inequalities on a Number Line

In this video, Mr. J explains how to graph the inequality X < 0 on a number line. He starts by placing an open circle at zero to indicate that zero is not included in the solution set. He then shows that the solution includes all numbers less than zero, represented by an arrow pointing to the left. The video concludes with a brief summary and an invitation to explore more detailed explanations and examples.

What does the inequality X < 0 mean in terms of number line representation?

• X is not a number

• X is less than zero

• X is equal to zero

• X is greater than zero

Why is an open circle used at zero when graphing X < 0?

• Zero is included in the solution

• Zero is greater than X

• Zero is not included in the solution

• Zero is the only solution

What does the open circle on a number line indicate?

• The number is not included in the solution

• The number is greater than all solutions

• The number is included in the solution

• The number is the only solution

In which direction should the arrow point when graphing X < 0?

• To the right

• To the left

• Upwards

• Downwards

What does the arrow on the number line represent in the context of X < 0?

• All numbers less than zero

• All numbers greater than or equal to zero

• All numbers equal to zero

• All numbers greater than zero