Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 HMH Go Math - Answer Keys
Chapter 14:Scatter Plots; Model Quiz


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14.1 Scatter Plots and Association

An auto store is having a sale on motor oil. The chart shows the price per quart as the number of quarts purchased increases. Use the data for Exs. 1–2.

  • Question 1 (request help)

    Use the given data to make a scatter plot.
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  • Question 2 (request help)

    Describe the association you see between the number of quarts purchased and the price per quart. Explain.
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14.2 Trend Lines and Predictions


The scatter plot below shows data comparing wind speed and wind chill for an air temperature of 20 °F. Use the scatter plot for Exs. 3–5.

  • Question 3 (request help)

    Draw a trend line for the scatter plot.
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  • Question 4 (request help)

    Write an equation for your trend line.
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  • Question 5 (request help)

    Use your equation to predict the wind chill to the nearest degree for a wind speed of 60 mi/h.
  •     °F

ESSENTIAL QUESTION

  • Question 6 (request help)

    How can you use scatter plots to solve real-world problems?
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