# FIRE UP!! - PowerPoint PPT Presentation

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TUESDAY. Turn in your signed syllabus to the front basket. Pick up a Unit 1 Parent Function Graph Packet. FIRE UP!!. Welcome BACK! . Discuss with your neighbor reasons you should learn math!. http:// youtu.be/yir86f0Uulw. Fortune 500 Companies.

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FIRE UP!!

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#### Presentation Transcript

TUESDAY

Pick up a Unit 1 Parent Function Graph Packet

## FIRE UP!!

Welcome BACK! 

Discuss with your neighbor reasons you should learn math!

http://youtu.be/yir86f0Uulw

### Fortune 500 Companies

• We can teach our employees the technical parts of the job, but they need to know how to ask the right questions!!

• We are looking for people that are reliable and can problem solve!!!

### Parent Functions

Students should be able to graph and state the characteristics for the following 8 parent functions

Constant

Identity/Linear

Cubic

Absolute Value

Square Root

Reciprocal

Greatest Integer

### Parent FunctionOverview

• Unit 1 will be focusing on 8 parent functions.

• You learned many of these in Algebra-2, but we will explore more characteristics!

• Let’s see what you recall from Alg-2????

• Sketch a graph of the 8 parent functions on the worksheet you picked up

### Objectives

• I can write solutions in Interval Notation format

• I cangraph the 8 parent functions

### These are all in Inequality Notation

We are going to change them to INTERVAL NOTATION

Like a closed dot, , ><

Like an open dot, , > <

### What is Interval Notation?

[ ] means “included” (equal to)

( ) means “not included”

All negative numbers

All positive numbers

### Infinity???

We ALWAYS use ( ) with infinity!!!

### Interval Notation

• Domain: All x-values that makeup the graph

• Range: All y-values that makeup graph

• Interval Notation: Used to show a range of values:

• Example: If the domain is all numbers between –3 to 6 then in interval notation:

• (-3, 6)

• If we want to include the numbers –3 and 6, then

• [-3, 6]

-1

0

2

6

Interval Notation

Sets may be described in many ways:  by roster, by set-builder notation,

by interval notation,  by graphing on a number line, and/or by Venn diagrams.

We will be using interval notation and number lines!

An interval is a connected subset of numbers.

Example:

Interval notation----

graphing on a number line

13

13

-1

-1

0

0

2

2

6

6

Example:

x < 13  or   x > 13

Note infinite

Is always open!

x < 0   or   2 < x< 10

Example:

open

closed

### Practice

• Let’s do some practice with the small white boards!

• White Board

• Marker

• Eraser/Rag

### Homework

• Read Textbook pages A2-A3 in back on interval notation if you need additional help

• WS 1-1

• Start Parent Function Packets See graphs at back of textbook.