1. Mini read a book at a constant rate. The graph of her progress is shown. Which statement is true?
a. / The slope of the line is different from the unit rate of page per minute. / c. / The slope of the line is the same as the unit rate of page per minute.b. / The slope of the line is different from the unit rate of page per minute. / d. / The slope of the line is the same as the unit rate of page per minute.
2. Determine the slope and y-intercept of the line.
a. / m = 1 ; y-intercept = 1 / c. / m = ; y-intercept = 1b. / m = 1 ; y-intercept = - 1 / d. / m = ; y-intercept = - 1
3. The graph shows how the number of feet x relates to the corresponding number of yards y. Which table also represents the relationship?
a. / / c. /b. / / d. /
4. Which shows a proportional relationship?
a. / / c. /b. / / d. /
5. What is the slope of the line through points J and L?
6. Which statement about the relationship in the
table is true?
b. / The relationship is linear because as x increases by 5, y decreases by 2.
c. / The relationship is linear because as x increases by 2, y decreases by 5.
d. / The relationship is not linear because the rate of change is not constant.
7. The graph shows the relationship between the number of students selling tickets and the amount of money raised. Which statement is NOT true?
b. / As the number of students selling tickets increases by 1, the amount of money raised increases by $20.
c. / As the number of students selling tickets increases by 1, the amount of money raised increases by $15.
d. / The relationship is linear because the rate of change is constant.
8. A runner burns 100 Calories for every 15 minutes spent running. How many hours of running would it take for a runner to burn 600 Calories?
a. / 1.5 hours / b. / 2.5 hoursc. / 6.7 hours / d. / 90 hours
9. Which table represents a proportional function?
a. /b. /
c. /
d. /
10. Which graph is NOT a proportional function?
a. /b. /
11. An online sports ticket-selling company charges a service charge of $4 to buy tickets. Each ticket costs $55 for a basketball game. Which equation represents the cost of buying tickets through the company?
a. / y4x55b. / y4x55
c. / y55x4
d. / y55x4
12. Determine the constant rate of change for the table.
13. Determine the unit rate for the table.
14. At 4 P.M., the level of the water in the lake was 10 feet. At 8 P.M., the level of water was 2 feet. Determine the constant rate of change of the water.
15. Ashton is depositing money into a checking account. After 3 months there is $120 in the account. After 6 months, there is $240 in the account. Determine the constant rate of change of the account.
16.The table shows the number of miles a car traveled from their house to the football stadium of the visiting team. Use the information to determine the rate of change in miles per minute. Then write a direct variation equation.
17. The table below shows the number of students that the school buses can transport to their field trip to the Museum of Natural Science. Use the table to solve for the constant rate of change. Then write a direct variation equation.
18. The table shows the amount of money the Viking Student Council raised at their recent car wash fundraiser. Use the table to find the constant rate of change in dollars per car. Then write a direct variation equation.
19. Write an equation for the table.
X / 0 / 17 / 19 / 22Y / -30 / 55 / 65 / 80
20. An artist charges $30 for 0 classes and $400 for 8 classes. Write an equation to represent this relationship.
ANSWER KEY
1. C
2. C
3. D
4. C
5. D
6. C
7. B
8. A
9. C
10. B
11. C
12. 6/7 lbs per day
13. $36 per month
14. -2 feet per hour
15. $40 per month
16.k = 12; y=12x
17. k = 60; y=60x
18. k = 7; y=7x
19. y = 5x - 30
20. y = 46.25x + 30