Identify Trend Lines Scatterplot

Which sentence describes the relationship shown on this scatterplot?

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

• A

• B

• C

• D

Which line appears to fit the data better?

• line A

• line B

Which shows a line of best fit?

• 
• 
• 
• 

If m = 8/5 and b = -8/5, what is the equation of the trend line in y= mx + b?

• 0 = 8/5 (1) - 8/5

• y = -8/5 x + 8/5

• y = 8/5 x - 8/5

• y = mx + b

If m = -3/4 and b = 9, what is the equation of the trend line in y= mx + b?

• 0 = -3/4 (9) +9

• y = -3/4 x + 9

• y = -3/4 x - 9

• y = 3/4 + 9

The scatterplot shows the temp, in degrees, outside a house every hour for 10 hours.

Estimate the temp after 13 hours based off the trendline.

• 57.5

• 50

• 10

• 13

• 61.5

• 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

• gain 7 cups of coffee for every 5 hours of sleep

Which of the following could be the equation of the trend line for this graph?

• There is no trend line because there is no association

Which equation could be a trend line for this graph?

• There is no trend line because there is no association