Which statement correctly explains whether the equation y = x2 – 2 represents a function? It is a function because there is only one x-value for each y-value.
It is not a function because there are no y-values less than – 2.
It is not a function because y = 2 when z = 2 or x = -2.
O It is a function because there is only one y-value for each 2-value.