Answer:
started off from maximum, so f(x) = acos(bx)
max(f(x))=a=4
f(x)=4cos(bx)
the period is T = 2π
b=2π/T=2π/2π
b=1
f(x)=4cos(x)
9514 1404 393
Answer:
A) $8/bushel (divide dollars by bushels)
B) $2
Step-by-step explanation:
A) We observe that the graph is a straight line through the origin, so we know the price is proportional to the quantity. The "rate of change" is the ratio of price to quantity, which can be figured using any point on the graph.
For easy division by quantity, it is convenient to use the point for 10 bushels. That price is $80, so the "rate of change" is ...
price per bushel = $80/10 = $8 . . . per bushel
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B) The same calculation can be done for the previous year. Any line of the table will do.
price per bushel = $12/2 = $6
The current year price is greater by ...
$8 -6 = $2 . . . per bushel
The answer is 0.0136986301369863
Hope this helped!!
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