Inequalities
Interval Notation
Facts/Graphs
Interval Notation
Inequalities
100
Express the following interval as an inequality
[3, 5]
3 ≤ x ≤ 5
100
(4 - 62)÷ [4(2 + 3) - 4]
-2
100
When graphing b< 6 would you use an open or closed circle?
Open
100
Write the following in interval notation
x < 8
(-∞, 8)
100
Write the following solution as in inequality
(-∞,-2]
x ≥ -2
200
(3 - 5)2 ÷ 4 + (8 - 3)2
26
200
Express the following in Interval Notation
-9 < x ≤ -4
(-9,-4]
200
This is a horizontal boundary.
What is domain?
200
Write the following in interval notation
x ≥ 100
[100, ∞)
200
Write the following solution as an inequality
(10, ∞)
y > 10
300
Express the following interval as an inequality
(14, 19)
14 < x < 19
300
Express the following in Interval Notation
-9 < x < -8.5
(-9, -8.5)
300
When writing in interval notation, what kind of brackets do I use for:
or ≤ or ≥
[] Brackets
300
Name something at home that people often run out of.
- Milk (30)
- Toilet paper (29)
- Bread (18)
- Eggs (13)
- Hand soap (10)
300
What makes you healthy and strong?
- Eating vegetables (30)
- Drinking your milk (27)
- Drinking water (20)
- Playing outside (14)
- A good night’s sleep (9)
400
Express the following interval as an inequality
(-63, ∞)
-63 < x
400
Write the following in interval notation
-7 ≤ x < 8
[-7, 8)
400
This is a vertical boundary.
What is range?
400
Look at the Graph. Write the inequality in interval notation.
[-4, -1)
400
Write the list of numbers included in this set
(22, 25]
23, 24, 25
500
(-∞,12) can be written as an inequality
x <12
500
Look at the graph. Write the inequality in interval notation.
(-∞,-2)⋃(5,∞)
500
Look at the picture. Which graph best represents the solution set (-∞, -2) U (5, ∞)?
Graph 1
500
Write the following in interval notation
{x < 3 or x ≥ 5}
(-∞, 3) or [5, ∞)
500
This is >
What is greater than?