Scatter Plot - Line of Best Fit

How many laps would you expect to run in order to burn 130 calories?

• 4

• 3

• 9

• 10

• As traffic volume increases, vehicle speed increases.

• As traffic volume increases, vehicle speed decreases.

• As traffic volume increases, vehicle speed increases at first, then decreases.

• As traffic volume increases, vehicle speed decreases at first, then increases.

• The graph shows a positive trend.

• The graph shows a negative trend.

• The graph shows a constant trend.

• The graph shows no trend.

• speed of an airplane (x) vs. distance traveled in one hour (y)

• outside air temperature (x) vs. air conditioning costs (y)

• distance traveled (x) vs. gas remaining in the tank (y)

• age of an adult (x) vs. height of an adult (y)

The police department tracked the number of

ticket writers and number of tickets issued for the past 8 weeks. The scatter plot shows the results. Based on the scatter plot, which statement is true?

• More ticket writers results in fewer tickets issued.

• There were 50 tickets issued every week.

• When there are 10 ticket writers, there will be 800 tickets issued.

• More ticket writers results in more tickets issued.

Which statement best describes why Trevor's conclusion was incorrect?

• The largest class does not have the most absences.

• The smallest class does not have the least number of absences.

• The data show no relationship between class size and number of absences.

• The data show a negative relationship between class size and number of absences.

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

What is the equation of the line of best fit

• y= -2x + 10

• y= 10x+ 2

• y= 10

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

• A

• B

• C

• D