TEKS.MATH.8.5D

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 140 pages. 

• 12 chapters
• 19 chapters
• 14 chapters
• 21 chapters

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TEKS.MATH.8.5D

Which of the following lines represents the line of best fit for the scatter plot?

• A
• B
• C
• D

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TEKS.MATH.8.5D

The linear regression equation is y = 61.93x - 1.79.  Use the equation to predict how far this person will travel after 10 hours of driving.

• 10 miles
• 617.5 miles
• 0.19 miles
• 500 miles

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TEKS.MATH.8.5D

What is the equation of the line of best fit

• y= -2x + 10

• y= 10x+ 2

• y=2x+10

• y= 10

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TEKS.MATH.8.5D

Which graph shows an accurate trend line for the scatter plot?

• Graph A

• Graph B

• Graph C

• Graph D

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TEKS.MATH.8.5D

Which could be the slope of the line of best fit?

• $\frac{1}{4}$

• 4

• -2

• $-\frac{1}{3}$
  

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TEKS.MATH.8.5D

The red line represents the line of best fit for the scatter plot. How many ice cream sales are expected if the temperature is 90°?

• 55
• 0
• 103
• 100

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TEKS.MATH.8.5D

which scatterplot shows the correct trend line (line of best fit) for the relationship showing the number games played and attendance in the Small Fry Baseball Tournament?

• W

• X

• Y

• Z

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TEKS.MATH.8.5D

The scatterplot shows the number of people in each of 8 different households and the average amount of money each household spent on groceries.

Based on the scatterplot, what is the best prediction of the average amount of money spent on groceries for a household that has 7 people?

• $240

• $190

• $210

• $285

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TEKS.MATH.8.5D

The manager of a restaurant recorded how many people were in different groups of customers and how much those groups spent on food and beverages. The scatterplot below shows the data she recorded.

Based on this scatterplot, about how much money would a group of 10 people be expected to spend on food and beverages at this restaurant?

• $135

• $119

• $105

• $147

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TEKS.MATH.8.5D