Question

A painting is purchased for $250. If the value of the painting doubles every 5 years, then

its value is given by the function VC) = 250 - 28/5, where t is the number of years since it
was purchased and V[t) is its value (in dollars) at that time. What is the value of the
painting ten years after its purchase?

Answer 1

After 5 years, value doubles.
Hence after 5 years, value is 250 x 2 = 500
After another 5 years, value doubles.
500 x 2 = 1000
Ans: $1000