Which of the following describes the function shown in the table below?

x
y
-4
16
-1
2
2
0.25
4
0.0625
5
0.03125
exponential, there is a constant rate of growth
exponential, there is a constant rate of decay or decrease
quadratic, there is a second degree change in the y-values
quadratic, there is a constant difference between consecutive y-values