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Question
Over what interval(s) is the function positive?Write your answer in interval notation.
Answer
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The following equation represents the best-fit regression line for median personal total income of adult males vs. years of education past eighth grade in Northern Wisconsin.
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The table below gives the life expectancy of a child (at birth) in the United States for selected years from 1920 to 1990.
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1940
1950
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1970
1980
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The graph below shows the number of birds at a bird feeder as a function of time. What event most likely occurred during interval E?
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Determine if this set of points represents a function.
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