Solving Inequalities with Interval Notation

Write the inequality in interval notation.

• [-4, -1)
• (-4, -1)
• (-4, -1]
• [-4, -1]

What inequality does the number line graph represent

• x ≤ 4
• x ≥ -4
• x < -4
• x < 4

What inequality does the number line graph represent?

• x ≥ 3
• x > 3
• x < -3
• x ≤ -3

What inequality does the number line graph represent?

• x > 5
• x < −5
• x ≥ 5
• x ≥ −5

Pick the correct inequality.

• A
• B
• C
• D

When graphing b< 6 would you use an open or closed circle?

• open
• closed

Write the following in interval notation
-7 ≤ x < 8

• (-7, 8)
• [-7, 8)
• [-7, 8]
• (-7, 8]

Write the following in interval notation
 x < 8

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

Write the following in interval notation
x ≥ 100

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

Which inequality is graphed below?

• x<3
• x>3
• x≤3
• x≥3