Question 1047534
Exponential Decay.


The equipment looses 4.5% of its value each year meaning it retains  {{{100-4.5=95.5*percent}}} of its value each year.


One way to form the model is  {{{highlight(f(t)=100000*(0.955)^t)}}}, for the value after any time in years, t.


The interpretation might not be correct.  If you really mean,  "... of its beginning value each year.", then this would not be exponential decay.
In this case, {{{0.045*100000=4500*dollars}}},for how much loss in a year, and the decay or depreciation function would need to be  {{{highlight(f(t)=-4500*t+100000)}}}.