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Question the-st

3.4 Two-Variable Data & Models - Using models for prediction
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The figure presents a sterplot titled “Minimum Wage.” The x axis is labeled “Years since 1940,” and the integers 0 through 80, in increments of 10, are indied. The y axis is labeled “Minimum wage, in dollars per hour,” and the integers 0 through 8 are indied. There are 8 data points in the sterplot, and the line of best fit is drawn. The line of best fit begins at the point representing 0 years since 1940, minimum wage 0 dollars per hour. It slants upward and to the right, and passes through the point representing 40 years since 1940, minimum wage 3 point 3 5 2 dollars, and the point representing 70 years since 1940, minimum wage 6 point 2 3 2 dollars

The sterplot above shows the federal-mandated minimum wage every 10 years between 1940 and 2010. A line of best fit is shown, and its equation is y equals, 0 point 0 9 6 x, minus 0 point 4 8 8. What does the line of best fit predict about the increase in the minimum wage over the 70-year period?

A.

Every 10 years between 1940 and 2010, the average increase in minimum wage was 0.096 dollars.

B.

Every 10 years between 1940 and 2010, the average increase in minimum wage was 0.488 dollars.

C.

Each year between 1940 and 2010, the average increase in minimum wage was 0.096 dollars.

D.

Each year between 1940 and 2010, the average increase in minimum wage was 0.49 dollars.