The mapping shows a relationship between x and y. 3
5
Which statement is true of the mapping? (8.5G)
A y is not a function of x, since the y value 3 corresponds to two different x-values.
O By is a function of x, since the y-values do correspond to exactly one x-value.
ocy is not a function of x, since the x-values do not correspond to exactly one y-value.
OD y is a function of x, since the x-values do correspond to exactly one y-value.