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Find a point-slope equation of the line containing the points (-2, 1) and (3, 7) then write the equation in slope-intercept form.
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Find the point-slope equation of the line perpendicular to the line in Question 1 that contains the point (-2,1) then write the equation in slope-intercept form.
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Graph the lines in Questions 1 and 2. Choose an appropriate viewing window so the lines appear to be perpendicular.
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Track star Carl Lewis won the World Championship 100 Meter Dash in Tokyo, Japan, in 1991 with a time of 9.86 seconds. Below is a chart for the times that he had at the indicated distances. Enter the data in your List editor with time in L1 and distance in L2 and create a scatter plot.
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Time (sec) x
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0
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1.88
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2.96
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3.88
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4.77
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5.61
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6.46
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7.30
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8.13
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9.00
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9.86
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Distance (m) y
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0
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10
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20
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30
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40
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50
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60
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70
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80
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90
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100
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Find the linear regression equation that best fits the data in Question 4.
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What does the slope of the line in Question 5 tell you about the race? Discuss the meaning of the y-intercept of the line in Question 5?
Click here to check your answers.
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