Practice with Functions Topic Index | Algebra Index | Regents Exam Prep Center

Choose the best answer for each question:

 1. Which of the relations below is a function? Choose: {(2,3), (3,4), (5,1), (6,2), (2,4)} {(2,3), (3,4), (5,1), (6,2), (7,3)} {(2,3), (3,4), (5,1), (6,2), (3,3)}

 2. Given the relation A = {(5,2), (7,4), (9,10), (x, 5)}.  Which of the following values for x will make relation A a function? Choose: 7 9 4

 3. The following relation is a function. {(10,12), (5,3), (15, 10), (5,6), (1,0)} Choose: True False

 4. Which of the relations below is a function? Choose: {(1,1), (2,1), (3,1), (4,1), (5,1)} {(2,1), (2,2), (2,3), (2,4), (2,5)} {(0,2), (0,3), (0,4), (0,5), (0,6)}

 5. The graph of a relation is shown at the right.  Is this relation a function? Choose: Yes No Cannot be determined from a graph

6.

Is the relation depicted in the chart below a function?

 X 0 1 3 5 3 9 Y 8 9 10 6 10 7

Choose:

Yes
No
Cannot be determined from a chart

 7. The graph of a relation is shown at the right.  Is the relation is a function? Choose: Yes No Cannot be determined from a graph

8.

Is the relation depicted in the chart below a function?

 X -2 -1 0 1 2 3 Y 5 5 5 5 5 5

Choose:

Yes
No
Cannot be determined from a chart

 9. The graph of a relation is shown at the left. Is the relation a function? Choose: Yes No  Cannot be determined from a graph

 10. The graph of a relation is shown at the right. Is the relation a function? Choose: Yes  No Cannot be determined from a graph

 11. Given f (x) = 3x + 7,  find  f (5). Choose: 15 22 42

 12. Given f (x) = 2x² - 3x + 6,  find  f (2.5). Choose: 11 23.5 76

 13. Which graph represents a function? Choose:

 Topic Index | Algebra Index | Regents Exam Prep Center Created by Donna Roberts