Exponential function

Question

of a person invest $190 at 8% annual interest, find the approximate value of the investment at the end of 10yrs

Answer 1

It isn't an exponential function the way you have it written. To be an exponential function, the problem has to be about compound interest or continuously compounded interest. Your question only involves simple interest.

i = prt

i = 190(.08)(10)

i = $152

A = P + i

A = 190 + 152

A = $342