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