← Back to Topic 10Print all levels + keys

Grade 8 Algebra: Identifying Functions

Name: ______________________Date: ____________Score: ____ / 8

Level 1

Sets of ordered pairs

  1. 1. Is the relation a function:
    {(1,2),(2,4),(3,6)}\{(1, 2), (2, 4), (3, 6)\}
  2. 2. Is the relation a function:
    {(1,3),(1,5),(2,7)}\{(1, 3), (1, 5), (2, 7)\}
  3. 3. Is the relation a function:
    {(0,1),(1,1),(2,1)}\{(0, 1), (1, 1), (2, 1)\}
  4. 4. Is the relation a function:
    {(2,5),(3,5),(2,6)}\{(2, 5), (3, 5), (2, 6)\}
  5. 5. Is the relation a function:
    {(−1,4),(0,3),(1,2)}\{(-1, 4), (0, 3), (1, 2)\}
  6. 6. Is the relation a function:
    {(4,1),(5,2),(4,3)}\{(4, 1), (5, 2), (4, 3)\}
  7. 7. Is the relation a function:
    {(3,0),(−3,0),(6,1)}\{(3, 0), (-3, 0), (6, 1)\}
  8. 8. Is the relation a function:
    {(7,2),(8,3),(9,4)}\{(7, 2), (8, 3), (9, 4)\}