How do you determine if the equation #y=0.4(1/3)^x# represents exponential growth or decay?
1 Answer
Jul 30, 2016
To check if ssuch equation is growth or decay you have to check the value of the base of the power.
Explanation:
An equation

growth if (
#a>0# and#b>1# ) or (#a<0# and#b in (0;1)# ) 
decay if (
#a>0# and#b in (0;1)# ) or (a<0 and b>1)