Algebra 1 Companion Book, Vol 1 – Summer Edition

1.2.4 Introduction to Functions − Worksheet

Example 1:

Graph each point.

1. J (4, 5)

2. K ( − 3, 2)

3. L (6, 0)

4. M (1, − 7)

Example 2:

y

Name the quadrant in which each point lies.

F

4

5. A

6. B

7. C

A

2

x

D B

8. D

9. E

10. F

2

4

–4 –2

–2

C

E

–4

Example 3:

11. The number of counselors at a summer camp must be equal to 1 4 the number of campers. Write a rule for the number of counselors that must be at the camp. Write ordered pairs for the number of counselors when there are 76, 100, 120, and 168 campers.

Example 4:

Generate ordered pairs for each function for x = − 2, − 1, 0, 1, and 2. Graph the ordered pairs and describe the pattern.

= y x 1 2

12. y = x + 2

13. y = − x

14. y = − 2| x |

15.

2

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