1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.
2. If their phone camera doesn't automatically detect and decode QR codes, ask students to
4. Cut them out and place them around your class / school.
1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.
2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.
3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!
4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.
Question | Answer |
| 1. What is a relation that has a one-to-one correspondence between its inputs and outputs called? | A Function | 2. What do you call the possible inputs of a relation? | Domain | 3. What do you call the possible outputs of a relation? | Range | 4. What can be used to determine if a graph is a function? | Vertical Line Test | 5. What is the domain of the following relation: {(-2, -4), (-1, -2), (0, 0), (1, 2), (2, 4)}? | {-2, -1, 0, 1, 2} | 6. What is the range of the following relation: {(-2, 3), (-1, 2), (0, 3), (1, 4)}? | {-2, 3, 4} | 7. Is the following a relation? Why or why not? {(-2, -4), (-1, -4), (2, -1), (3, 0)} | Yes, because every input has one output. | 8. Create a table of the following relation. Then, determine if it is a function. {(-3, -2), (-1, 2), (-3, 4), (1, 1), (2, 3)} | No. | 9. Use the given domain to find the range for each function. F(x) = 3x + 2. Domain: {-1, 0, 1, 2, 3} | Range: {-1, 2, 5, 8, 11} | 10. Use the given domain to find the range for each function. F(x) = -2x + 1. Domain: {-2, -1, 0, 1, 2} | Range: {5, 3, 1, -1, -3} | 11. Use the given domain to find the range for each function. F(x) = x2 – 1. Domain: {-2, 0, 2, 4, 6, 8} | Range: {3, -1, 3, 15, 35, 63} | 12. Use the given RANGE to find the domain for each function. F(x) = 3x + 2. Range: {-1, 3, 8, 11} | Domain: {-1, 1/3, 2, 3} | 13. Use the given RANGE to find the domain for each function. F(x) = x2 + 1. Range: {1, 5, 10, 17} | Domain: {-4, -3, -2, 0, 2, 3, 4} | 14. Use the given RANGE to find the domain for each function. F(x) = 1/2x + 2. Range: {-1, 0, 2, 4} | Domain: {-6, -2, 0, 6} | 15. Determine if the following situation is a function: Your score on your Unit 3 math summative from this year. Why or why not? | Yes | 16. Determine if the following situation is a function: The number of miles driven in a car versus the number of gallons used. Why or why not? | No | 17. Determine if the following situation is a function: The temperature in Atlanta on November 16th in any given year. Why or why not? | No | 18. Determine if the following situation is a function: The height of a person based on their age. Why or why not? | No | 19. True or false. A function crosses a vertical line exactly one time. | True | 20. True or false. Another form for y = x is f(x) = x. | True | 21. True or false. The domain corresponds to the y coordinate. | False | 22. True or false. X is to output as Y is to input. | False | 23. Find f(2), f(0), and f(-1), if f(x) = -3x – 10. | -16, 10, -7 | 24. Evaluate m(-3) and m(4), if m(x)= x3 – 20. | -47, 44 |
What is a relation that has a one-to-one correspondence between its inputs and outputs called?&choe=UTF-8
Question 1 (of 24)
What do you call the possible inputs of a relation?&choe=UTF-8
Question 2 (of 24)
What do you call the possible outputs of a relation?&choe=UTF-8
Question 3 (of 24)
What can be used to determine if a graph is a function?&choe=UTF-8
Question 4 (of 24)
What is the domain of the following relation: {(-2, -4), (-1, -2), (0, 0), (1, 2), (2, 4)}? &choe=UTF-8
Question 5 (of 24)
What is the range of the following relation: {(-2, 3), (-1, 2), (0, 3), (1, 4)}? &choe=UTF-8
Question 6 (of 24)
Is the following a relation? Why or why not? {(-2, -4), (-1, -4), (2, -1), (3, 0)} &choe=UTF-8
Question 7 (of 24)
Create a table of the following relation. Then, determine if it is a function. {(-3, -2), (-1, 2), (-3, 4), (1, 1), (2, 3)}&choe=UTF-8
Question 8 (of 24)
Use the given domain to find the range for each function. F(x) = 3x + 2. Domain: {-1, 0, 1, 2, 3} &choe=UTF-8
Question 9 (of 24)
Use the given domain to find the range for each function. F(x) = -2x + 1. Domain: {-2, -1, 0, 1, 2} &choe=UTF-8
Question 10 (of 24)
Use the given domain to find the range for each function. F(x) = x2 – 1. Domain: {-2, 0, 2, 4, 6, 8} &choe=UTF-8
Question 11 (of 24)
Use the given RANGE to find the domain for each function. F(x) = 3x + 2. Range: {-1, 3, 8, 11} &choe=UTF-8
Question 12 (of 24)
Use the given RANGE to find the domain for each function. F(x) = x2 + 1. Range: {1, 5, 10, 17} &choe=UTF-8
Question 13 (of 24)
Use the given RANGE to find the domain for each function. F(x) = 1/2x + 2. Range: {-1, 0, 2, 4} &choe=UTF-8
Question 14 (of 24)
Determine if the following situation is a function: Your score on your Unit 3 math summative from this year. Why or why not?&choe=UTF-8
Question 15 (of 24)
Determine if the following situation is a function: The number of miles driven in a car versus the number of gallons used. Why or why not?&choe=UTF-8
Question 16 (of 24)
Determine if the following situation is a function: The temperature in Atlanta on November 16th in any given year. Why or why not?&choe=UTF-8
Question 17 (of 24)
Determine if the following situation is a function: The height of a person based on their age. Why or why not?&choe=UTF-8
Question 18 (of 24)
True or false. A function crosses a vertical line exactly one time. &choe=UTF-8
Question 19 (of 24)
True or false. Another form for y = x is f(x) = x. &choe=UTF-8
Question 20 (of 24)
True or false. The domain corresponds to the y coordinate. &choe=UTF-8
Question 21 (of 24)
True or false. X is to output as Y is to input. &choe=UTF-8
Question 22 (of 24)
Find f(2), f(0), and f(-1), if f(x) = -3x – 10. &choe=UTF-8
Question 23 (of 24)
Evaluate m(-3) and m(4), if m(x)= x3 – 20. &choe=UTF-8
Question 24 (of 24)
