Test 3 Algebra

Solve the following inequality:

x + 2 > 12

• subtract 2 from both sides and your answer is

  x = 10

• subtract 2 from both sides and your answer is

  x > 10

• subtract 2 from both sides and your answer is

  X < 10

- 3x < -12

• divide both sides by -3 and your answer is

  x < 4

• x = 4

• divide both sides by -3 and your answer is

  x > 4

  because you divided by a negative and had to flip the inequality symbol

Match the graph with its inequality.

• a > 11

• a < 11

• a ≥ 11

• a ≤ 11

Match the inequality statement with its symbol.

• less than

• at least

• greater than

• no more than

WHICH INEQUALITY IS REPRESENTED BY THE GRAPH?

WHICH INEQUALITY IS REPRESENTED BY THE GRAPH?

Solve:
5 - 3x < -4

• x > 3
• x < 3
• x < -3
• x > -3

Solve:
2x + 5 <  3x - 6

• x < 11
• x > 11
• x > -11
• x < -11

What interval notation does the number line graph represent?

• [∞, -5)
• (∞, -5)
• [-5, ∞)
• (-5, ∞)

Write in interval notation.