Algebra 2 Companion Book, Volume 1

1.2 Review Worksheet

1.2.1 Relations and Functions Give the domain and range for each relation. 1. Basketball Points Scored

2.

4

Player Points

Irene 22

Anna 12

Lea 16

Kate 12

Determine whether each relation is a function. 3. Women’s Glove Sizes Size Maximum Hand Length (in.) S 6.5 M 7.5 L 8.5

4.

3 5 7 9

1 0 9 33

Use the vertical-line test to determine whether each relation is a function. If not, identify two points a vertical line would pass through. 5. 6. 7.

4

2

1.2.2 Function Notation For each function, evaluate f

  

  

3 2

f

− , and 1 . f ( )

0 ,

( )

8. f ( x ) = 7 x − 4

9. f ( x ) = − x 2 + x

10. f ( x ) = − 2 x 2 + 1

65

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