EXPLANATION
A. y = 4^(x)
This is an exponential function because y tends to infinite when x tends to infinite. Growth ---> YES
B. y= (1/3)^x ---> It's an exponential decay function because when x tends to infinite, y tends to zero.
C. y=(7/6)^2x This is an exponential growth function because when x tends to infinite, y tends to infinite.
D. y= 70(0.3)^4x This is an exponential decay function because when x tends to infinite, y tends to zero
E. y= (1.03)^6x This is an exponential growth function because when x tends to infinite, y tends to infinite too.