Intro to Chapter 6

What does a filled circle on a number line graph of an inequality indicate?

• The number is not a solution.

• The number is included in the solution set.

• The inequality involves "greater than" only.

• The inequality involves "less than" only.

How would you graph the inequality x ≥ 5 on a number line?

• An open circle at 5 with an arrow pointing to the right.

• A filled circle at 5 with an arrow pointing to the left.

• A filled circle at 5 with an arrow pointing to the right.

• An open circle at 5 with an arrow pointing to the left.

Which statement correctly describes the graph of the inequality w < 1?

• An open circle at 1 with an arrow pointing to the right.

• A filled circle at 1 with an arrow pointing to the left.

• A filled circle at 1 with an arrow pointing to the right.

• An open circle at 1 with an arrow pointing to the left.

Which graph correctly represents the inequality a > -4?

• An open circle at -4 with an arrow pointing to the right.

• A filled circle at -4 with an arrow pointing to the right.

• An open circle at -4 with an arrow pointing to the left.

• A filled circle at -4 with an arrow pointing to the left.

What inequality is represented by a filled circle at 8 with an arrow pointing to the left?

• x < 8

• x > 8

• x ≤ 8

• x ≥ 8

What inequality is represented by an open circle at -4 with an arrow pointing to the right?

• x ≤ -4

• x < -4

• x ≥ -4

• x > -4

What inequality is represented by a filled circle at 20 with an arrow pointing to the right?

(a)  

• x < 20

• x ≤ 20

• x > 20

• x ≥ 20

Which inequalities include the number as part of the solution?

Groups:

(a) Includes the number

,

(b) Does not include the number