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 CompositionsFunctions Slope and Graphs Parallel & Perpendicular Lines Regression

2. Suppose Find

4. DAILY DOUBLE: Solve the following absolute value problem:

6. Suppose Find

12. Is a function?

13. No, the input of 2 has two different outs of 3 and 5!

14. Given find x if f(x) = 10.

16. What is the domain and range in interval notation?

18. Given What is the domain in set-builder notation?

20. Given What is the domain in set-builder notation?

22. Find the slope of the line going through

24. DAILY DOUBLE You finally get your driver’s license and borrow money for your first car. The bank charges you 11% simple interest. After one year, $9,500 pays off your loan. How much money did you originally borrow?

26. Write the equation of a line going through the points

28. Find the x-intercept and y-intercept of.

30. Find the equation of a line perpendicular to and passing through.

32. DAILY DOUBLE Zack Cole shot an 86 on the golf course on Monday. On Friday, he shot a 95. What is the % change?

34. Determine whether the graphs of are parallel.

35. Not parallel because same line

36. Write the equation of the line, in slope-intercept form, that goes through the point (2, 8) that is parallel to.

38. Write the equation of the line, in slope-intercept form, that is perpendicular to 2y + 3x = 6 and goes through the point (3, 10).

40. Write the equation of a line going through (4, 7) that is perpendicular to the line going through (-2, 3) and (4, 11).

42. Input the data in your calculator and identify the x-variable and y- variable of the following: IncomeTaxes $8,000$24 $15,000$70 $25,000$180 $40,000$300 $75,000$560

43. x-variable : income y-variable: taxes Your taxes depend on your income!

44. Use the same data and find the regression equation. Round to 3 decimal places.

46. Predict the taxes for an income of $100,000.

48. Predict your income if the taxes were $850.

50. Based on your regression equation, state the slope and y-intercept. Explain the meaning of each in terms of income and taxes.

51. For each dollar your income increases, taxes will increase $0.008 (less than a penny). At $0 of income, your taxes are -$35.99.