Graphing Inequalities on a Number Line

What does an open circle on a number line indicate?

• The number is included in the solution.

• The number is irrelevant.

• The number is not included in the solution.

• The number is both included and not included.

If X > 4, where should the arrow point on the number line?

• To the left of 4

• To the right of 4

• Both left and right of 4

• Nowhere

What does a closed circle on a number line signify?

• The number is not included in the solution.

• The number is included in the solution.

• The number is irrelevant.

• The number is both included and not included.

For the inequality X ≥ 0, where should the arrow point?

• To the left of 0

• To the right of 0

• Nowhere

• Both left and right of 0

How do you graph X > -3 on a number line?

• Open circle on -3, arrow to the left

• Open circle on -3, arrow to the right

• Closed circle on -3, arrow to the right

• Closed circle on -3, arrow to the left

For the inequality X ≤ 2, where should the arrow point?

• Nowhere

• To the right of 2

• Both left and right of 2

• To the left of 2

How do you determine if an inequality is greater than or less than on a number line?

• By looking at the direction of the arrow

• By looking at the circle

• By looking at the number

• By guessing

What does a closed circle on 4 with an arrow pointing left represent?

• X ≤ 4

• X < 4

• X > 4

• X ≥ 4

What should you do to ensure your graph makes sense?

• Only look at the numbers

• Check the direction of the arrows and the type of circles

• Guess the direction

• Ignore the arrows

If X is greater than 2, what type of circle should be used on the number line?

• Closed circle on 2

• Closed circle on -2

• Open circle on -2

• Open circle on 2