Question
Is the relation (number of farms, average size of farms) a function? Explain.Describe how the average size of farms is related to the year.
Step 1
If for each number of farms there is exactly one corresponding average size of farms, then this relation is a function. However, it is possible that the same number of farms could have different average sizes, depending on other factors such as location, type of Show more…
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SIZE OF U.S. FARMS Use the data in the table below to make a line graph showing the average acreage of U.S. farms for selected years from 1950 through 2007 . $$\begin{array}{l|cc}\hline & \text { Number of } & \text { Average size } \\\text { U.S.farms } & \text { of U.S. farms } \\\text { Year } & \text { (in millions) } & \text { (acres) } \\\hline 1950 & 5.6 & 213 \\1960 & 4.0 & 297 \\1970 & 2.9 & 374 \\1980 & 2.4 & 426 \\1990 & 2.1 & 460 \\2000 & 2.2 & 436 \\2007 & 2.1 & 449 \end{array}$$
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