Is it a function? Quiz

Name: ______________________   Date: __________   Score: ____ / 10

10 questions. Calculator allowed. Show your working. steplyclass.com/algebra-2/is-it-a-function/quiz/

1. 1

   Is {(1, 2), (2, 4), (3, 6)} a function
   1. A) Yes
   2. B) No

2. 2

   Is {(0, 1), (1, 1), (2, 1)} a function
   1. A) Yes
   2. B) No

3. 3

   Is {(−1, 3), (0, 5), (2, 3), (5, 0)} a function
   1. A) Yes
   2. B) No

4. 4

   Is y = 2x + 1 a function
   1. A) Yes
   2. B) No

5. 5

   Is x = 3 a function
   1. A) Yes
   2. B) No

6. 6

   Is x = y² a function
   1. A) Yes
   2. B) No

7. 7

   Is x = −2 a function
   1. A) Yes
   2. B) No

8. 8

   Is {(1, 5), (2, 5), (3, 5), (4, 5)} a function
   1. A) Yes
   2. B) No

9. 9

   Is y = 3x − 2 a function
   1. A) Yes
   2. B) No

10. 10

    Is {(5, 1), (3, 2), (1, 3), (−1, 4), (−3, 5)} a function
    1. A) Yes
    2. B) No