Question

Mario $15,000 car depreciates in value at a rate of 27.1% per year. The value,V, after t years can Be modeled by the function V= 15,000 (0.729)^t . Which function is equivalent to the original function ?
1) 15,000 (0.9)^3t

2) 15,000 (0.9)^2t

3) 12,000 (0.9)^t/9

4) 13,000 (0.9)^t/2


Which two functions can be eliminated Immediately and why ?

Answer 1

1)15,000(0.9)^3t is the answer