You need to simplify it first.

Use distribution

y=mx+b
m=slope
your slope is -4 :)
Answer: V=
cm^3
Step-by-step explanation:
V = s³
V = (0.01)³
V=(1/100)³
V=
cm^3
Straight line depreciation applies the same amount of depreciation in each year.
Our Depreciation Base is 21,000 - 1,000 = 20,000
The useful life is 5 years, so each year we depreciate 20,000 ÷ 5 = 4,000
Book Value is Cost - Accumulated Depreciation
After Year 1:
Book Value = 21,000 - 4,000 = 17,000
Answer is A) 17,000