Question

3. Which sets of ordered pairs represent a function? Select all that apply ​

Answer 1

• c. and e.

Explanation:

Given sets:

• a. {(1, 0), (2, 1), (2, 3)} ⇒ x- value repeated twice (2)
• b. {(1, 3), (1, 4), (1, 5)} ⇒ x- value repeated three times (1)
• c. {(1, 5), (2, 5), (3, 5)} ⇒ x- values are unique
• d. {(3, 1), (2, 2), (3, 3)} ⇒ x- values repeated twice (3)
• e. {(3, 2), (5, 1), (4, 0)} ⇒ x- values are unique

The sets c and e represent a function. The others have repeated x- values.