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Hard Math · Problem-Solving and Data Analysis · Two-variable data: Models and scatterplots · MCQ
The figure presents a scatterplot titled “Minimum Wage.” The x axis is labeled “Years since 1940,” and the integers 0 through 80, in increments of 10, are indicated. The y axis is labeled “Minimum wage, in dollars per hour,” and the integers 0 through 8 are indicated. There are 8 data points in the scatterplot, 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 scatterplot 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?

  1. A

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

  2. B

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

  3. C

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

  4. D

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

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id cb_question_bank:3451eb79-6f07-4a83-8320-966dd7275297 · question d6af3572 · IBN 020386-DC · JSON