1. What is the domain of the following relation? (use correct notation) { (1, 3), (4, 5.5), (6, 9), (10, 0) }

2. What is the domain of the following relation? (use correct notation) { (1, 3), (4, 5.5), (6, 9), (10, 0) } Answer: {1, 4, 6, 10}

3. What is the range of the following relation? (use correct notation) { (1, 3), (4, 5.5), (6, 9), (10, 0) }

4. What is the range of the following relation? (use correct notation) { (1, 3), (4, 5.5), (6, 9), (10, 0) } Answer: {0, 3, 5.5, 9}

5. Is the relation a function? Why or why not? { (1, 3), (4, 5.5), (6, 9), (10, 0) }

6. Is the relation a function? Why or why not? { (1, 3), (4, 5.5), (6, 9), (10, 0) } Yes- each x-value is paired with exactly one y-value

7. Given the function g(x) = x 2 +6, evaluate g(-2).

8. g(-2)=(-2) 2 +6 = 4+6 = 10

9. Given the function h(x) = x+6, evaluate h(a+4).

10. h(a+4) = a+4+6 = a+10

11. What is the name of the test we can use to identify if the graph of a relation is a function?

12. Answer: Vertical line test

13. Is the following relation a function?

14. Is the following relation a function? No- fails vertical line test

15. What is the domain of this relation? (use correct notation)

16. What is the domain of this relation? (use correct notation) D: [-5, 5]

17. What is the range of this relation? (use correct notation)

18. What is the range of this relation? (use correct notation) R: [-5, 5]

19. Evaluate f(4)

20. Evaluate f(4) f(4)=3

21. f(x)=5. Solve for x.

22. f(x)=5. Solve for x. x=0

24. Bottom right is a function

25. What is the domain of this relation?

26. D: [-10, 10]

27. What is the range of this relation?

28. R: [-2, 6]

29. Evaluate f(9)

30. f(9)=-2

31. What is the domain of this relation?

32. D: [-5, ∞)

33. What is the range of this relation?

34. R: (- ∞, 5]

35. Evaluate f(3)

36. f(3)=2

37. What is the definition of a function?

38. A function is a relation in which each x-value is paired with exactly one y-value