Which Of The Following Ordered Pairs Define A Function?, A. {( 1,2) , (2,4), (5,9), (2,3)}, B. {(0,1

Which of the following ordered pairs define a function?

A. {( 1,2) , (2,4), (5,9), (2,3)}
B. {(0,1), (1,1), (2,3), (4,2)}
C. {(1,2), (2,3), (3,4), (3,5)}
D. {(1,1), (2,1), (2,3), (3,5)}

 

B. {(0,1), (1,1), (2,3), (4,2)}

Explanation:

According to the definition of function, for every definite value of x, the corresponding value of y is unique.

:)