What is a function? can the following set of ordered pairs represent functions? why or why not? a =(-4,-4), (2,0), (6,4) ,(10,2) b=(9,3), (9,-3), (4,2), (5,-2) c=(-3,7), (-2,7), (1,,7)

A and C represent a function and B doesn't represent.

Step-by-step explanation:

A function is a relation that maps one output value of y for each input value of x.

A. Ordered pairs can be written as relation

Here each input value of x determines one output value of y and this set of ordered pairs represents function.

B. Ordered pairs can be written as relation

Here for input value x=9 there are 2 output values of y (y=3 or y=-3). This set of ordered pairs doesn't represent function.

C. Ordered pairs can be written as relation

There is exactly one y for each x, then this set of ordered pairs represents function.

i am unable to solve this problem

step-by-step explanation:

christopher is 272,195 year old

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