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Which of the following sets represents the domain of the function shown? {(2,3),(4,7),(5,9),(11,6)}

A{2,4,5,11}
B{3,7,6,9}
C{(3,2),(7,4),(9,5),(6,11)}
D{2,3,4,5,6,7,11}

Verified Answer :

konrad509

The domain are x's. The x's are 2,4,5,11 so it's A.
 

Answer: A) {2,4,5,11}

{(2,3),(4,7),(5,9),(11,6)}

The numbers are given in ordered pairs (x,y)

First number is x  and the second number is y

x values are : 2, 4, 5, 11

y values are : 3, 7 , 9 , 6

Domains of a function are the set of x values

so for domain  we take all the x values and we write inside the brackets { }

Domain  is {2, 4, 5, 11}

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