Scatterplot Slope and Trend Lines

the slope is -5/7, what does that mean?

• gain 5 hour of sleep for 7 cups of coffee

• lose 5 hours of sleep for 7 cups of coffee

• lose 7 cups of coffee for 5 hours of sleep

• lose 5 cups of coffee for 7 hours of sleep

As the age of the car increases, its value decreases. Which scatter plot represents this relationship?

• A

• B

• C

• D

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 

• As the temperature increases, the number of visitors increases. 

• As the visitors increase, the temperature decreases. 

• No correlation

Which best describes the form of this scatterplot?

• linear

• nonlinear

• scattered

Which of the following are ways to find the rate of change?

• change in y over change in x

• rise over run

• subtract y coordinates over subtract x coordinates

• all these methods will work

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 220 pages.

• 22 chapters

• 20 chapters

• 18 chapters

• 26 chapters

• 17 chapters

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

• 60

What does the slope represent in this situation?

• The sloth moves 1 feet in 3 minutes

• The sloth moves 3 feet in 1 minute

• The sloth moves 10 feet

• The sloth moves 6 feet in 1 minute

• The sloth moves for 1.5 minutes

A scatterplot and trendline was created comparing time spent exercise with body weight. What does the y-intercept mean in the context of this situation?

• How much a person weighs if they spend no time exercising

• The average weight of a person

• The longest amount of time that a person spent exercising in the survey

• The heaviest person in the survey

• A persons weight to height ratio

The graph and table show the number of pages and words in each book. Which book is the outlier? (Type the book number)