Which relation is NOT a function?
a. {( 1, -5), (3,1), (-5,4), (4,-2)} b. {(1,-5), (-1,6), (1,5), (6,-3)}
c. {(2,7), (3,7), (4,7), (5,8)} d. {(3,-2), (5,-6), (7,7), (8,8)}
a. {( 1, -5), (3,1), (-5,4), (4,-2)} b. {(1,-5), (-1,6), (1,5), (6,-3)}
c. {(2,7), (3,7), (4,7), (5,8)} d. {(3,-2), (5,-6), (7,7), (8,8)}
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Answer:
B. is not a function
Step-by-step explanation:
Functions are relations that do not repeat values/numbers in the domain/x. Letter B repeats 1 twice.
b. {(1,-5), (-1,6), (1,5), (6,-3)}