Question

Solve, assuming a linear equation fits the situation. The value of a graphing calculator is $225. After 2 years, the value of this calculator is $160. Find the value of the calculator after 5 years. ( Hint, Let the time now be 0, the time in two years be 2, and the time in five years be 5.)

Answer 1

when t=0
cost c=225$
when t=2
c= 160$
c= (32.5)t + 95
now put t=5
you'll get your answer

Answer 2

So the answer is 257.5?

Answer 3

So would that be it then?

Answer 4

no each year the cost is decreasing by 32.5
c(t) = 225 -32.5t

Answer 5

So the answer is 192.5?

Answer 6

oh yeah made a mistake sorry.

Answer 7

plug in t=5

--> c = 225 - (32.5)(5)

Answer 8

So its 62.5?

Answer 9

yes