Please help me I will give you extra points and the brain thing.
Which statement about this mapping is true? image below
A.The mapping does not represent y as a function of x, because there are more x-values than related y-values.
B.The mapping represents y as a function of x, because each y-value is related to exactly one x-value.
C.The mapping does not represent y as a function of x, because 1 x-value is related to 2 y-values.
D.The mapping represents y as a function of x, because each x-value is related to exactly one y-value.