1.  Ten students prepared for a quiz and kept track of the time that each spent studying. Each reported the number of hours on the quiz and the teacher recorded the quiz grade of each student.
Is there a relationship between the number of hours spent preparing for the quiz and the quiz grade?

2. Framers believe that there is a linear relationship between the average amount of rainfall during the growing season of carrots and the average weight of a carrot produced.
Is there a linear relationship between the average amount of rainfall and the average weight?

3)  The cost of operating the Internal Revenue Service (IRS) increased steadily from 1980 to 1990.
Is there a linear growth pattern in the data supplied?

4) In 1980, 3.5% of the doctorates in engineering were awarded to women. By 1990, 8.5% were being earned by women.
Can you find the average rate of change in the percentage of engineering doctorates earned by women from 1980 to 1990?

5) The percentage of female law enforcement officers in the United States rose from 9.4% in 1983 to 13.8% in 1990.
Can you find the average rate of change in the percentage of female law enforcement officers in the United States from 1983 to 1990?

6) In 1970, 130 African-American women held elected Federal Offices in the United States. By 1990, the number had increased to 1950. In 1973, Barbara Jordan became the first African-American woman from a Southern state to serve in the United States Congress.
Can you find the average rate of change in the number of African-American women holding elected Federal Offices in the United States?

7) Gratuity on service at a restaurant is usually 15% of the cost of the meal before the tax is added to the bill.
Can you develop a table that displays what the amount of gratuity should be for meals costing between $20 and $200 with dollar increments of 10?

8) A certain culture of bacteria doubles every hour. This type of growth is commonly called exponential growth and it is quite rapid.
Can you develop a table that displays what the bacteria count is every hour given an initial bacteria count of 100 and allowing the growth to take place over the next 10 hours?

9) The hourly wage at a fast food restaurant starts at $4.75 per hour with $0.25 increments after each subsequent year of working experience at the restaurant. Hourly employees can work only 37.5 hours per week, do not get paid vacations, and work 52 weeks per year.
Can you develop a table that shows at each stage of a nine year employment period what an employee earns each week and each year?

10) Use the CASIO fx7400G to draw the graph of the inequality 2 x + 3 y > 2 y + 1

14) Use the CASIO fx7400G to draw the graph of the inequality
y >

16)  Use the CASIO fx7400G to draw the feasibility region of the system of inequalities given below and
find the integer values of the vertices:  y < 4, y < -2 x + 12, y > -2/3 x + 4

17)  Use the CASIO fx7400G to draw the feasibility region of the system of inequalities given below and
find the integer values of the vertices:  y < - 2 x + 20, y > - 10 x + 36, y > - 2/5 x + 36/5

18) Use the CASIO fx7400G to draw the feasibility region of the system of inequalities given below and
find the integer values of the vertices:

21) Solving an equation of quadratic form can be accomplished graphically using the CASIO fx7400G.
Solve for x: x4 - 13 x2 + 36 = 0

22) An experiment was performed which measured the number of hours a certain brand of battery allowed a toy rabbit to operate. Twenty-four randomly selected batteries of that particular brand were tested. Below are the number of hours each battery lasted.
Hours 34 37 29 31 32 33 31 29 28 35 36 30 36 30 29 34 22 33 35 32 30 32 34 28
Use the CASIO fx7400G to draw a boxplot for these data and give the five-number summary (Min, Q1, Median, Q3, Max) of the hours.

23) In a large urban public school district, a random sample of the percent of students in Algebra who pass are given
below:
Percent 80 78 82 83 78 80 75 79 82 89 81 79 80 79 81 82 76 73 80 79 81 78 80 77
Use the CASIO fx7400G to draw a boxplot for these data and give the five-number summary (Min, Q1, Median, Q3, Max) of the hours.

24) Below are the percents of the popular vote won by the successful candidate in each of the presidential elections from 1948 to 1988.