Does the equation y² = x² + 5x + 4 represent a function? a) Yes, the equation is a function because there is only a single term that contains the variable y.

b) No, the equation is not a function because there are multiple terms that contain the variable x.

c) No, the equation is not a function because some values of x result in more than one value of y, such as x=0 resulting in y=2 or y=−2.

d) No, the equation is not a function because some values of y result in more than one value of x, such as y=0 resulting in x=−1 or x=−4.