Inequalities & Interval Notation

When graphing an inequality solution, what type of circle do I draw for the symbol:

or ≤ or ≥

• Closed Circle

• Open Cirlce

When graphing an inequality solution, what type of circle do I draw for the symbol:

> or <

• open circle

• closed circle

When writing a solution in interval notation, what brackets do i use for:

> or <

• [ ]

• ( )

When writing in interval notation, what kind of brackets do I use for:

or ≤ or ≥

• [ ]

• ( )

Write the following solution in interval notation:

x ≥ -3

• [ -3, ∞ )

• ( -3, ∞ )

• ( -∞ , -3 )

• ( -∞ , -3]

Write the following solution in interval notation:

z < 20

• ( 20,∞)

• ( -∞ , 20)

• ( -∞ , 20]

What interval notation does the number line graph represent?

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

x is no more than 13

• x < 13
• x > 13
• x ≥ 13
• x ≤ 13

Solve the inequality:
x + 7 < 9 

• x < 2
• x < 16
• x < 63

Solve the following inequality:
-4x + 14 ≤ 54

• x ≥ -10
• x ≤ -10
• x ≥ 10
• x ≤ 10