Mathematics

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Linear Regression

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  • Multiple Choice
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    15 minutes
    1 pt
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    A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.

    y = 1.5x + 12

    y = 12x + 1.5

    y = 0.67x - 8

    y = -8x + 0.67

  • Multiple Choice
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    2 minutes
    1 pt
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    The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 
    12 chapters
    15 chapters
    18 chapters
    21 chapters
  • Multiple Choice
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    15 minutes
    1 pt

    If x is temperature and y is coffee sales, use the following formula to determine the coffee sales on a 34° day.

    y = -60x+6443

    $4403

    $4673

    $8483

    $6443

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