Question

which of the following is not a function A (2,1),(4,3),(6,5),( 8,7) B (2,1),(4,1),(6,5),(5,4) C (2,1),(4,3),(6,5),(2,7) please help me answer this question

Answer 1

C

Explanation:

a function is defined by each x value having only one y value

In option c, a x value of 2 could have a y value of either 1 or 7