Question

hich set of points represents a function? A. (0, 2), (1, 2), (2, 4), (3, 5), (4, 5) B. (1, 2), (2, 1), (2, 4), (3, 5), (4, 5) C. (3, 4), (2, 1), (4, 2), (3, 5), (4, 5) D. (5, 2), (3, 2), (4, 2), (5, 3), (4, 5)

Answer 1

Set A because each input has exactly one output

Answer 2

Set A. (0, 2), (1, 2), (2, 4), (3, 5), (4, 5) represents a function

Why?

A function is a special kind of relation in which each value of the input variable is paired with exactly one value of the output variable.

Each value in the input variable in set A is paired with exactly one value of the output variable.

0 - 2

1 - 2

2 - 4

3 and 4 - 5

While on the other hand, sets B, C and D has the values of the input variable paired with more than one value of the output variables.