Slope Line of Best Fit

440 turtles

• 440 turtles

• 40 turtles

• 150 turtles

• 90 turtles

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

Which scatter plot shows a linear relationship between x and y?

• Graph A

• Graph B

• Graph C

• Graph D

In the equation of the line of best fit, the m stands for?

• the slope

• the y-intercept

• the x-intercept

• the strength of the data points

Use the equation of the trend line y = 8.77x + 686 to predict what the hiker's elevation will be after 145 minutes. Round to the nearest whole number of feet.

Is there anything wrong with the line of best fit?

• The line of best fit it perfect!

• There are too many data points BELOW the line.

• There are too many data points ABOVE the line.

• The line of best fit should be longer.

Which graph displays the best fitting line?

• A

• B

• C

• D

Select all that describe the type of association shown in the scatter plot.

• postive

• negative

• linear

• strong

• weak

Which two points could you use to find the slope?

• (0, 0)

• (4, 15)

• (7, 25)

• (3, 10)

What is the equation of the line of best fit?

• y = 5x + 25

• y = x + 25

• y = 25x + 1

• y = 25x + 5