Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 HMH Go Math - Answer Keys
Chapter 14:Scatter Plots; Lesson 2: Trend Lines and Predictions


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Guided Practice

Angela recorded the price of different weights of several bulk grains. She made a scatter plot of her data. Use the scatter plot for 1–4.

  • Question 1 (request help)

    Draw a trend line for the scatter plot.
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  • Question 2 (request help)

    How do you know whether your trend line is a good fit for the data? 
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  • Question 3 (request help)

    Write an equation for your trend line.
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  • Question 4 (request help)

    Use the equation for your trend line to interpolate the price of 7 ounces and extrapolate the price of 50 ounces.
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ESSENTIAL QUESTION CHECK-IN

  • Question 5 (request help)

    A trend line passes through two points on a scatter plot. How can you use the trend line to make a prediction between or outside the given data points?
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