Question

NEED HELP ASAP

Which set of ordered pairs represents a function?
{(0, 1), (1, 3), (1, 5), (2, 6)}
{(0, 0), (1, 2), (2, 4), (3, 4)}
{(0, 1), (1, 2), (2, 3), (2, 4)}
{(0, 0), (0, 2), (2, 2), (2, 4)}

Answer 1

functions will not have any repeating x values...they can have repeating y values, just not the x ones.

so ur functions are : A, C, and E

Answer 2

A function is a special relationship where each input has a single output.

{(0, 1), (1, 3), (1, 5), (2, 6)} NOT because for x = 1 we have y = 3 and y = 5

{(0, 0), (1, 2), (2, 4), (3, 4)} YES

{(0, 1), (1, 2), (2, 3), (2, 4)} NOT because for x = 2 we have y = 3 and y = 4

{(0, 0), (0, 2), (2, 2), (2, 4)} NOT because for x = 0 we have y = 0 and y = 2

and for x = 2 we have y = 2 and y = 4.