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1.Let W= f (t) represent wheat production in Argentina (1), in millions of metri

ID: 2863556 • Letter: 1

Question

1.Let W= f (t) represent wheat production in Argentina (1), in millions of metric tons, where t is years since 1990. Interpret the statement f (9) = 16 in terms of wheat production.

In ______, Argentina produced ________ million metric tons of wheat?

2. The concentration of carbon dioxide, C= f (t), in the atmosphere, in parts per million (ppm), is a function of years, t, since 1960.

a. Interpret f(40) = 370 in terms of carbon dioxide. In the year ______, the concentration of carbon dioxide in the atmosphere was _______ ppm?

b. What is the meaning of f(10)?

either ( the year in which the concentration of carbon dioxide was) or (the concentration of carbon dioxide in the year). ________ (exact number).

3. A deposit is made into an interest bearing account. The figure below shows the balance, B, in the account t years later.

a. Estimate f (10) and interpret it. Enter your answer to the nearest hundred.

F(10)= ______? The balance in the account after _______ years is about $______?

b. How many years does it take for the balacne to reach $4000. Enter your answer to the nearest integer.

Explanation / Answer

1.Let W= f (t) represent wheat production in Argentina (1), in millions of metric tons, where t is years since 1990. Interpret the statement f (9) = 16 in terms of wheat production.

In __2009____, Argentina produced ___16_____ million metric tons of wheat

2. The concentration of carbon dioxide, C= f (t), in the atmosphere, in parts per million (ppm), is a function of years, t, since 1960.

160+40=2000

a. Interpret f(40) = 370 in terms of carbon dioxide. In the year __2000____, the concentration of carbon dioxide in the atmosphere was ___370____ ppm?

b. What is the meaning of f(10)?1960+10=1970

(the concentration of carbon dioxide in the year). ___1970___

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