SOLUTION: A machine is now worth $155,800 and will be depreciated linearly over a 10 year period, at which time it will be worth $40,300 as scrap.
(a) Find the rule of depreciation functio
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Question 1094142: A machine is now worth $155,800 and will be depreciated linearly over a 10 year period, at which time it will be worth $40,300 as scrap.
(a) Find the rule of depreciation function f.
(b) What is the domain of f?
(c) What will the machine be worth in 7 years?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = time in years, starting now at
Plot on the horizontal
Plot on the vertical
You are given 2 points on a line,
( 0, 155800 )
( 10, 40300 )
-------------------------------
(a)
Use the general point-slope formula
------------------------------------
check:
does it go through ( 10, 40300 ) ?
OK
--------------
(b)
The domain is from ( 0, 155800 ) to ( t, 0 )
yrs
The domain is from 0 to 13.49
-------------------------------
(c)
Find ( 7, f )
It is worth $74,950 in 7 yrs
------------------------------
check the math
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