1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Proportion Control This Plot Is Scattered! Searching For x Gettin’ Triggy With It Slippery Slopes

2. A relationship is linear if it has a _______ _______ of change. Slippery Slopes- $100

3. constant rate $100

4. Find the slope of the line that passes through the points (-3, 4) and (2, 7). Slippery Slopes- $200

5. $200

6. Find the equation of a line, in slope-intercept form, that passes through the points (0, -7) and (3, 2) Slippery Slopes- $300

7. $300

8. Find the equation of the line parallel to the line, and passes through the point (4, 6). Slippery Slopes- $400

9. $400

10. Write an equation of a line, in slope-intercept form, that passes through the points (1, -2) and (-5, 7) Slippery Slopes- $500

11. $500

12. To solve a proportion, you use the ______ _______ property. Proportion Control $100

13. cross product $100

14. Solve the proportion:. Proportion Control- $200

15. x = 4 $200

16. Solve the proportion. Proportion Control- $300

17. $300

18. If y varies directly as x, and the constant of variation is ½, find x when y is 12. Proportion Control- $400

19. x = 24 $400

20. If x and y vary directly, what do you know about b in the equation y = mx + b ? Proportion Control- $500

21. b = 0 $500

22. Draw an example of a scatter plot with a strong positive correlation. Include at least 8 points on your plot. This Plot Is Scattered! - $100

23. Sample Answer: $100

24. In a certain scatter plot, the correlation coefficient is found to be -0.75. Describe how close the data points are to the least squares line and what type of correlation is shown. This Plot Is Scattered! - $200

25. Most of the data is relatively close to the line and the line represents a negative correlation. $200

26. Find the equation of a least squares line (to 3 decimal places) in y = ax + b format for a line with the following data: This Plot Is Scattered! - $300 x01234 y2.13.84.65.05.36.2

27. $300

28. This Plot Is Scattered! - $400 Find the correlation coefficient (to 2 decimal places) for the following set of data: x-84.212-5.379.17 y5.223.14.86.42-2

29. r = -0.15 $400

30. Why will the calculator always fit a least squares line even to data that has no reliable correlation? This Plot Is Scattered! - $500

31. The calculator computes the line using a formula. The correlation coefficient tells you how useful that line may or may not be. $500

32. Solve for x: Searching For x - $100

33. $100

34. Solve for x: Searching For x - $200

35. $200

36. Solve for x: Searching For x - $300

37. $300

38. Solve for x: Searching For x - $400

39. $400

40. Solve for x: Searching For x - $500

41. No Solution The absolute value can never be less than -5. $500

42. Gettin' Triggy With It - $100 Fill in the ?:

43. opposite $100

44. Fill in the ? without using a 1: Gettin' Triggy With It - $200

45. $200

46. Gettin' Triggy With It - $300 Solve for x. Give the exact answer.

47. $300

48. Give the exact answer: Gettin' Triggy With It - $400

49. $400

50. You’re standing on a cliff flying a kite when your kite falls into the lake below. The angle of declination from your line of sight to the kite is 30 degrees. The string of the kite, which is fully extended, is 400 feet. What is the height of the cliff? Gettin' Triggy With It - $500

51. The cliff is 200 feet above the lake. $500