Question 199800
Exponential  Growth  is  expressed  as  ,,,,,y = C(1+r)^t,,,  with  (1+r) >1
.
Exponential  Decay  is  expressed  as .....y= C ( 1-r)^t,,,with 1>(r-1) >0,,,or 0<r<1

.
To  GROW,,  the  expanding  fact or  must  be  greater  than  1
.
To DECAY,  the  factor  must  be  less  than  1, ( but  larger  than  0)
.