A speeding motorist slams on the brakes when she sees an accident directly ahead of her. The distance she has traveled seconds after braking is shown in the table.
Time (seconds)
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Distance (feet)
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- Enter the data into your calculator and create a scatterplot. Fit a quadratic regression equation to the data and graph the equation on the scatterplot.
Regression equation: Use for the time in seconds.
- Use your regression equation to find the vertex of the parabola:
What do the coordinates represent in terms of the problem?