# How do you determine if the equation #y = (3)^x# represents exponential growth or decay?

##### 1 Answer

Mar 18, 2016

y =

if b > 1 it is growing

if b < 1 (and greater than 0 of course), then it is decreasing (decay)

if b = 1, we do not have an exponential function at all, since y = 1 will be a straight (horizontal) line