Algebra Chapter 9 Test

1) Solve the inequality:

3(x – 1) ≥ –9

• x ≥ –2

• x ≥ 2

• x ≤ –2

• x ≤ 2

2) What inequality is graphed?

• x > 2 and x ≤ -3

• x > 2 and x < -3

• x > 2 or x ≤ -3

• x > 2 or x < -3

3) Graph the solution set of the inequality.

–4n + 1 > –23

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4) Solve:

|x + 3| > 8

• x > 5 or x < -11

• x > 5

• all real numbers

• no solution

5) Solve:

3 | 2x + 7| - 7 < -4

• x < -3 and x > -5/3

• x < -3 and x > -4

• all real numbers

• no solution

6) How can I tell if an inequality will have a solid line?

• It has an equal sign.

• The symbol is greater than.

• The symbol has "or equal to."

• You just guess.

7) Which inequality is shown in the graph?

• $5x-y\ge5$

• $5x+y\ge5$

• $-5x+y\ge5$

• $5x-y\le5$

8) Select the correct graph for each inequality.

• A

• B

• C

• _D

9) Which system of linear inequalities is represented by the graph?

• y≤2x-1

  y>-2x+3

• y>2x-1

  y≤-2x+3

• y<2x-1

  y≥-2x+3

• y≤2x-1

  y>2x+3

10) Solve the system of inequalities by graphing.

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