Interval Notation (reg)

Write the following in interval notation
x ≥ 100

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

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.3

Write the following in interval notation
 x < 8

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

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.3

CCSS.HSA.REI.B.3

Write the inequality in interval notation.

• (-2,5)
• (-∞,-2)⋃(5,∞)
• [-2,5]
• (-∞,-2]∪[5,∞)

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

Write the following in interval notation
x < 3 or x ≥ 5

• (3, -∞) or (∞, 5]
• [-∞, 3) or [5, ∞]
• (-∞, 3) or [5, ∞)
• (3, -∞] or [∞, 5]

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.3

CCSS.HSA.REI.B.3

Can you use the symbols [ or ]
with infinity or negative infinity?

• Yes
• No
• Pizza

What interval notation does the number line graph represent?

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

Tags

CCSS.HSA.CED.A.3

CCSS.HSA.REI.D.12

Write the inequality in interval notation. x > -1

• (-∞, -1)
• (-1, ∞]
• (-∞, -1]
• (-1, ∞) 

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

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

• ≤, ≥ 
• <, >
• ?

Tags

CCSS.HSA.REI.D.12

When graphing an inequality, you use an open dot when you use which symbol?

• <, >
• ≤, ≥ 
• ?

Tags

CCSS.HSA.REI.D.12

Match the graph with the correct interval notation. 

• [11,∞)
• [11,∞]
• (∞,11]
• (-∞,11]

Tags

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.12