Symbols
Write an Inequality
Add or Subtract Inequalities
Multiply or Divide Inequalities
Major's Playground
100

A is Greater than B

A > B

100

There are less than 5 cookies left.

C < 5

100

p - 5.3 ≤ 4.0

p ≤ 9.3

100

v/9<6

v<54

100

Which direction do we graph an inequality when we use the negative infinity symbol?  i.e. -∞

LEFT

200

A Not Equal To B

A≠B

200

Jimmy scored more than 95% on his test.

J > 95

200

12 < s + 7

5 < s

200

k/-5>2

k > -10

200

What type of notation is this?

{ x | x>42}

Set Builder Notation

300

B is Less Than A

B < A

300

The chair is no more than 35 inches tall.

C ≤ 35

300

-29>j-19

-10>j

300

21≥-7s

-3≤s

300

What type of notation is this?

[8,-∞)

Interval Notation

400

B Less Than or Equal To A

B ≤ A

400

The pitcher has thrown no less than 125 pitches.

P ≥ 125

400

-85≥q-24

-61≥q

400

u/-6.1<-9.4

u<57.34

400
Using interval notation, what grouping symbol do we use if the set is closed?

Brackets [  ]

500

A is Greater Than or Equal To B

A ≥ B

500

George is at least 30 but no more than 40 years old.

30 ≤ G ≤ 40

500

4n-3n+3≥-23

n≥-26

500

16/-17*q>8/34

q<-1/4

500

Show a number graph for this:

{x|-4<x<4}