1. WELCOME TO
MATH II

2. How did I get here so quickly??
What day is it?
How did I get here so quickly??
Lesson 1 -

3. Interval Notation vs Inequality Notation
Unit 1
Interval Notation vs
Inequality Notation

4. I can write a solution in Inequality Notation
Objectives
I can write a solution in Inequality Notation
I can write a solution in Interval Notation

5. x ≥ 2 Inequality (Set) Notation (INQ) Interval Notation (INT)
How many of you have a “nickname” or another name that you are called by?
x ≥ 2
Inequality (Set) Notation (INQ)
Interval Notation (INT)

6. These are in Inequality Notation (Set Notation)
We are going to change them to INTERVAL NOTATION

7. What is Interval Notation?
[ ] means “included” (equal to)
Like a closed dot, , > <
( ) means “not included”
Like an open dot, , > <
HIGHLIGHT THIS IN YOUR NOTEBOOK!

8. We ALWAYS use ( ) with infinity!!!
All negative numbers
All positive numbers
We ALWAYS use ( ) with infinity!!!

9. Symbols
INQ: Inequality Notation
INT: Interval Notation

15. WARM-UP

16. What would be different for these?

17. Graph it on a number line.
PRACTICE
Graph it on a number line.
Change it to interval notation

18. Graph it on a number line.
PRACTICE
Graph it on a number line.
Change it to interval notation

19. Graph it on a number line.
PRACTICE
Graph it on a number line.
Change it to interval notation

20. Graph it on a number line.
PRACTICE
Graph it on a number line.
Change it to interval notation

21. What would we do if the solution was ALL REAL NUMBERS?
Interval Notation?