1. Interval Notation Parenthesis Brackets Infinity
Interval Notation includes the use of three special symbols.
Parenthesis
Brackets
Infinity
Indicates the interval continues forever in a negative or positive direction.
Indicates the interval’s endpoints are not included.
Indicates the interval’s endpoints are included.
That’s like an open circle.
That’s like a closed circle.
That’s like an arrow.

2. General Rules for Interval Notation
Inequality
Graph 5 5 -3 -3

3. Working with Interval Notation
Write each interval as an inequality and graph the solution. 1 8

4. More Working with Interval Notation
Write each inequality in interval notation & graph the solution. 6 13

5. Homework
Page :
All Questions

6. Compound Inequalities
A Compound Inequality consists of two distinct inequalities joined by the word and or the word or.
That was easy
The graph of a compound inequality with the word and contains the overlap of the two inequalities that form the compound inequality.
The graph of a compound inequality with the word or contains each graph of the two inequalities that form the compound inequality. 3
So…and means between and or means split. 5 9 11

7. Writing Compound Inequalities
Write a compound inequality for each situation & graph the solution.
All real numbers that are greater than or equal to 7 and less than or equal to 19
All real numbers that are greater than or equal to -13 and less than -8
All real numbers that are greater than -2 and less than 6
I’d like to push the easy button now.

8. More Writing Compound Inequalities
Write a compound inequality for each situation & graph the solution.
All real numbers that are less than 3 or greater than 14
All real numbers that are less than 6 or greater than or equal to 17
All real numbers that are less than 0 or greater than 4
Quiero empujar el boton de facil.

9. Even More Writing Compound Inequalities
Write a compound inequality for each situation & graph the solution.
During the month of August the low temperature was 83 degrees and the high temperature was 94 degrees.
The circumference of a large pizza must be between 41.5 inches and 44 inches inclusive.
That was easy
Asi de facil

10. Writing Compound Inequalities from a Graph
Write the compound inequality represented by each graph.
That was easy
Remember…and means between and or means split.

11. Homework Page 204: 9, 10 Page 213: 88, 89 Page 225: 48