Question

A function of x consists of following ordered pais of them form (x, y). Four of the ordered pairs are shown below:

(-2, 7), (0, 3), (1, -4), (5,-2).
Which could be the 5th ordered pair if it were to remain a function?

Answer 1

C

Explanation:

It has to be C because other wise an x value would be repeated. If an x value is repeated it is a relation not a function.