1.1 Interval and Set Notation Quick Check

Given the inequality, which of the following is written correctly in interval notation?

-3 ≤ x < 5

• (-3, 5)

• [-3, 5]

• [-3, 5)

• (-3, 5]

Tags

CCSS.HSA.REI.B.3

Express the following in interval notation.

{ x | -9 < x < -8.5 }

• [-9, -8.5]

• [-9, -8.5)

• (-9, -8.5]

• (-9, -8.5)

Tags

CCSS.HSA.CED.A.3

CCSS.HSA.REI.B.3

Express the following in interval notation.

-8 ≤ x < 8

• [-8, 8]

• [-8,8)

• (-8, 8]

• (-8, 8)

Tags

CCSS.6.EE.B.8

Express the following in interval notation.

-9 < x ≤ -4

• [-9, -4]

• (-9,-4]

• [-9, -4]

• (-9,-4)

Tags

CCSS.6.EE.B.8

Express the following interval in set notation.

(-7, 15]

• -7 ≤ x ≤ 15

• -7 < x < 15

• -7 ≤ x < 15

• -7 < x ≤ 15

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

Express the following interval in set notation.

[3, 5]

• 3 ≤ x ≤ 5

• 3 < x ≤ 5

• 3 ≤ x < 5

• 3 < x < 5

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.3

Write the following in interval notation.

x ≥ 100

• (0, 100]

• [100, ∞)

• (∞, 100]

• (∞, 100)

Tags

CCSS.7.EE.B.3

Write the following in interval notation.

x < 8

• (8, ∞)

• (8, -∞)

• (-∞, 8)

• [-∞, 8]

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

Can you use the symbols [ or ]
with infinity?

• Yes
• No

Tags

CCSS.6.EE.B.8

What interval notation does the number line graph represent?

• [∞, -5)

• (∞, -5)

• [-5, ∞)

• (-5, ∞)

Tags

CCSS.8.NS.A.2