The value, V, of a Tiffany lamp, worth $225 in 1965, increases at 15% per year. Its value in dollars t years after 1965 is given by V=225(1.15)^t.
Find the average value of the lamp over the period 1965-2000.

Question

The value, V, of a Tiffany lamp, worth $225 in 1965, increases at 15% per year. Its value in dollars t years after 1965 is given by V=225(1.15)^t.
Find the average value of the lamp over the period 1965-2000.

anonymous · Answer

@Dockworke I'm pretty horrible at typing and explaining, so I'm sort of relying to people back me up :S

anonymous · Answer

i think you should subtract 225 from v(35) before dividing by 35

anonymous · Answer

Yeah, delta y/ delta x, make sense!

anonymous · Answer

this may be an integration problem though

anonymous · Answer

Avg = Δ V / Δ t
= V ( 35 ) - 35 / 35 
= [ 225(1.15)^ 35 - 35 ] / 35 = $849.7

anonymous · Answer

I figured it out on my own. The answer is actually $6079.62, but thank you for having tried.