3.1a Inequalities

4x - 10 ≤ 22

• x ≤ 8
• x ≥ 8
• x ≤ 3
• x ≥ 3

15 + 7x ≥ 29

• x ≥ 2
• x ≥ -2
• x ≤ 2
• x > 2

Match the graph with its inequality.

• 11 < a
• 11 > a
•  11 ≤ a
•  11 ≥ a

When you graph an inequality, you used a closed dot when you use which symbols?

• ≤, ≥ 
• <, >

-2(x+2) < 14

• x < - 5
• x > -5
• x < -9
• x > -9

-4x + 14 ≤ 54

• x ≥ - 10
• x ≤ -10
• x ≥ 10
• x ≤ 10

Express the following in Interval Notation
-8 ≤ x < 8

• [-8, 8]
• [-8,8)
• (-8, 8]
• (-8, 8)

Write the following in interval notation
x ≥ 100

• (0, 100]  (Real quick)
• (∞, 100]
• [100, ∞)
• (∞, 100)

Write the following in interval notation
 x < 8

• (8, ∞)

• (8, ∞]

• (-∞, 8)

• [-∞, 8]