A1 1.11 Set Notation Lesson

1.11: Set Notation

Today we will discuss roster form, set builder notation, and interval notation.

Fill in the Blanks

In roster form, write the set of all even integers greater than 2 and less than 12.

Multiple Choice

Which inequality represents all real numbers that are greater than 2?

• $x<2$

• $x\le2$

• $x>2$

• $x\ge2$

Multiple Choice

Which inequality represents all real numbers that are greater than -3 and less than or equal to 5?

•  $5\le x<-3$  
  

•  $5<x\le-3$  
  

•  $-3\le x<5$  
  

•  $-3<x\le5$  
  

Open Ended

How do we know when to use  $<$   and when to use

 $\le$  ?

Fill in the Blanks

Express

 $-3<x\le5$  in interval notation.

Multiple Choice

Which solution set represents the number line pictured here?

• $-3<x<4$

• $-3\le x<4$

• $-3<x\le4$

• $-3\le x\le4$

Multiple Choice

Which is the solution in interval notation?

• (-3,4)

• [-3,4)

• (-3,4]

• [-3,4]

Poll

Now that we have done a live quizziz lesson, which do you prefer?

• Doing the quizziz lesson that has video clips independently at my own pace.

• Doing the quizziz lesson in class live with the whole group together.