1. 2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Review of Functions Function Library Linear Functions Applications Grab Bag!

2. Is the relation a function?

3. yes

4. Is the relation a function?

5. no

10. Find the domain:

12. Describe the graph and its transformations:

13. A “V” reflected over the x-axis and shifted left 3

14. Describe the graph and its transformations:

15. A “U” shifted right 4 and down 6

16. What is the equation for this graph?

18. Graph the function:

20. Graph the piecewise function:

22. Write an equation of the line with slope 1 and y-intercept -2

24. Find the slope and y-intercept of the equation:

25. m=8/3, b=-8

26. Write an equation of the line with slope 2/3 that goes through the point (-6,-5).

28. Find the slope of the line that passes through the points (-2,3) and (-2,-1)

29. undefined

30. Write an equation of the line that passes through the points (-5,-2) and (5,-4)

32. A company manufactures and sells a specialty watch. The financial research dept. determined that at a price of $88 each, the demand would be 2000 watches, and at $38 each, 12000 watches. Assuming a linear relationship, what would be the price at a demand of 8000 watches?

33. $58

34. In 2003 Aaron had 32 CDs in his collection and in 2006 he had 66. How many CDs does he have in 2010?

35. about 111

36. If you get 2 oil changes per year the average cost of engine repair is $500 and if you get 6 per year, it’s only $100. Assuming this is a linear relationship, find the number of oil changes you should get if you don’t want to pay for engine repair at all.

37. About 7

42. Find the domain:

44. Graph the piecewise function:

46. Write an equation of the line that goes through the points (2,3) and (-5,3)