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4 July, 07:02

The scatter plot shows a hiker's elevation above sea level during a hike from the base to the top of a mountain. The equation of a trend line for the hiker's elevation is y equals=9.069.06xplus+651651 , where x represents the number of minutes and y represents the hiker's elevation in feet. Use the equation of the trend line to estimate the hiker's elevation after 175 minutes.

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  1. 4 July, 10:38
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    2236.5

    Step-by-step explanation:

    The regression equation for predicting hiker's elevation is

    y=9.06x+651.

    Here x is the number of minutes.

    We wish to estimate hiker's elevation after 175 minutes. For this purpose we put x=175 in the predicted regression equation.

    y=9.06 (175) + 651

    y=1585.5+651

    y=2236.5

    Thus, the hiker's elevation after 175 minutes is 2236.5 feet.
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