1. You may answer these questions on a separate piece of paper. Use the data below to determine whether it's true that "the older you are, the more money you earn" using plotted data (draw a graph - use graphing program or pencil and graphing paper).

• Ensure both axes include :
• a breaker to show that they don't start at zero,
• scales that increase in equal increments, and appropriate titles and units. Age

Earnings ($)

Age

Earnings ($)

25

22000

30

26500

35

29500

37

29000

38

30000

40

32000

41

35000

45

36000

55

41000

60

41000

62

42500

65

43000

70

37000

75

37500

1. What's the general trend shown by your best-fit line?
2. Does it generally support the hypothesis?
3. About how much more does a person earn per year (in general)? Show all work.
4. Is there an area of the graph that doesn't follow this trend? Can you explain why?

3. Consider the graph showing the height of plants over time, based on sunshine per day. 180 Key: 160 1 Hour of Sunlight 3 Hours of Sunlight 140 6 Hours of Sunlight 120 9 Hours of Sunlight 100 Height (mm) 40 20 anoutesup 6 7 and 150:2003 10 11 Day plant measured