Select the correct answer. Which of the following sets of ordered pairs represents a function?
Select the correct answer

C. {(9,-9), (12,-9), (0,-9), (-9,12)}

Step-by-step explanation:

This is because only C passes the VLT(vertical line test). This means that there is not more than one point per x value.

perimeter = 10 +  √10  units

explanation:

first, we will need to get the length of each line using the distance formula which is as follows:

distance = 

1- length of ab:

ab =   = 5 units

2- length of ac

length of ac is the same as ab = 5 units

3- length of bc:

bc =   =  √10  units

now, we can get the perimeter by adding the side lengths as follows:

perimeter = 5 + 5 +  √10

perimeter = 10 +  √10  units

hope this : )

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the answer that is correct is false