Answer:
Company B and Company D shows exponential decay in sale
Step-by-step explanation:
Company A B C D
Sale [tex]f(t) = 1.05^t \ \ \ f(t) = 0.75^t \ \ \ f(t) = 1.212^t \ \ \ f(t) = 0.9712^t[/tex]
General form of exponential function is given by
[tex]y=ab^x[/tex]
Where 'a' represents the initial value
b represents the exponential growth or decay
If b > 1 then it is an exponential growth
If 0<b<1 then it is an exponential decay
[tex]f(t) = 1.05^t[/tex]
b values is 1.05 that is greater than 1 so it is exponential growth
[tex]f(t) = 0.75^t[/tex]
b values is 0.75 that is less than 1 so it is exponential decay
[tex]f(t) = 1.212^t[/tex]
b values is 1.212 that is greater than 1 so it is exponential growth
[tex]f(t) = 0.9712^t[/tex]
b values is 0.9712 that is less than 1 so it is exponential decay
Company B and Company D shows exponential decay in sale
