2.1.1 Graphing Quadratic Functions

Secondary Math 2

Name___________________________________ ID: 1

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2.1.1 Graphing Quadratic Functions

Date________________ Period____

Sketch the graph of each function using the vertex and the y-intercept. 1) f ( x ) = 2 x 2 + 8 x + 6

2) f ( x ) = - x 2 + 2 x - 4 y

y

7

-3

-2

-1

1

6

2

3

5 x

4

-1

5 -2 4 -3

3 2

-4

1 -7

-6

-5

-4

-3

-2

-5

-1

1

3 x

2

-6

-1 -7

-2 -3

-8

3) f ( x ) = 2 x 2 + 8 x + 10

4) f ( x ) = 2 x 2 - 4 x y

y

11

7

10

6

9

5

8

4

7 3 6 2 5 1

4 3

- 10

-8

-6

-4

-2

-6

-5

-4

-3

-2

-1

1

2

-1

1

-2

2

3

4 x

-3

x

Worksheet by Kuta Software LLC

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5) f ( x ) = - 2 x 2 + 4 x - 1

6) f ( x ) = - 2 x 2 - 4 x

y

-6

-5

-4

-3

-2

y

2

3

1

2

-1

1

2

3

1

4 x

-1

-8

-7

-6

-5

-4

-3

-2

-1

1

-2

-1

-3

-2

-4

-3

-5

-4

-6

-5

-7

-6

-8

-7

7) f ( x ) = x 2 - 4 x + 5

2 x

8) f ( x ) = - 2 x 2 + 8 x - 10

y

y

6

-5 -4 -3 -2 -1

1

5.5

-1

5

-2

4.5

-3

4

2

3

4

5 x

-4

3.5 -5 3 -6 2.5 -7

2

-8

1.5

-2

-1

1

-9

0.5

- 10 1

2

3

- 11

4 x

Follow the same instructions for Page 13 #4-7. Use graph paper from the back of your book. 9)

Worksheet by Kuta Software LLC

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