Question

Identify the relation that is also a function.Select one of the options below as your answer: A. {(1, 0) (2, 3) (3, -2) (1, 6)} B. {(3, 2) (3, -2) (3, 6) (3, 8)} C. {(-1, 1) (0, 0) (1, 1) (2, 4)} D. {(3, 4) (2, 3) (3, 6) (2, 0)}

Answer 1

a function is either one-to-one or many-to-one - a one to many relation is not a function
eg A is not a function because of the 2 pairs (1,0) and (1,6) : domain value 1 maps to 0 and to 6 : - its a one - many relation

Answer 2

so it b

Answer 3

its*

Answer 4

no b is a one-to-many relation because of (3,2). (3,-2) etc

Answer 5

the first number in the pair of values is domain and second is range