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Functions Defined

Functions You Should Know

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Combining Functions

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 UNIT 2  : FUNCTIONS

 LESSON 2:  FUNCTIONS YOU SHOULD KNOW

 

Square Root functions:

 

 

 

 

x

0

0

1

1

4

2

9

3

16

4

 

 

 

 

 

                       

 

 

 

Linear Functions:

 

 

 

 

x

0

0

1

1

2

2

3

3

4

4

 

 

 

 

 

 

 

 

 

Graphing Lines Using the Intercept Method:

 

               

Graphing Lines Using the Table of Values Method:

 

 

x

-3

-9

-2

-5

-1

-1

0

3

1

7

2

11

3

15

 

 

 

 

 

 

The Quadratic Function:

 

 

 

x

-3

9

-2

4

-1

1

0

0

1

1

2

4

3

9

  

 

 

 

 

The Reciprocal Function:

 

 

x

-5

-1/5

-3

-1/3

-1

-1

-0.5

-2

-0.2

-5

-0.1

-10

0

Und.

0.1

10

0.2

5

0.5

2

1

1

3

1/3

5

1/5

 

 

 

 

The Absolute Value Function:

 

 

x

-3

3

-2

2

-1

1

0

0

1

1

2

2

3

3

 

 

 

 

 

 

 

The Cubic Function:

 

 

 

x

-3

9

-2

4

-1

1

0

0

1

1

2

4

3

9

 

 

 

 

 

 

The Semi-Circle Function:

 

x

-5

0

-4

3

-3

4

-1

4.9

0

5

1

4.9

3

4

4

3

5

0

 

 

Remember these graphs and the key points.

You will use them throughout this chapter

 

Domain Defined Functions:

 

 

 

 

 

 

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