-1 is the Y intercept for the graph
Answer:
Part 1) The total square footage of the fence is 
Part 2) 
Step-by-step explanation:
Part 1) what is the total square footage of the fence ?
we know that
The area of the fence is equal to

substitute the values

Part 2) How much will Jake get paid
Using proportion

Paralell is smae slope so it is
2x+3y=c
find c
given
(9,-3)
x=9
y=-3
evaluate to find the constant, c
2(9)+3(-3)=c
18-9=c
9=c
the equation is 2x+3y=9
we can use formula

now, we can find a and b
Initially , price is 500
so,
At 


now, we can plug back

At 
we can use it and find b

now, we can solve for b
and we get

so,
annual depreciation rate is 27.144%.......Answer
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