Robin bought a computer for $1,250. It will depreciate, or decrease in value, by 10% each year that she owns it.
a.) Is the sequence formed by the value at the beginning of each year arithmetic, geometric, or neither? Explain.
b.) Write an explicit formula to represent the sequence.
c.) Find the value of the computer at the beginning of the 6th year.
+33616 At the beginning of the 1st year it is worth 1250
At the beginning of the 2nd year it is worth 1250*0.9
At the beginning of the 3rd year it is worth 1250*0.9*0.8 → 1250*(0.92)
...
At the beginning of the n'th year it is worth 1250*(0.9n-1)
Try taking it from here.
