Line of Best Fit

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

• Yes

• No

Tags

CCSS.8.EE.B.5

Which line is the best line of best fit?

• a

• b

• c

• i don't see any lines

Tags

CCSS.8.EE.B.5

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

• To make it look like you know what you are doing

• y = 1.45x + 22
• y = -2x + 15
• y = 1.33x + 30
• y = -1.5x + 24

Tags

CCSS.8.EE.B.5

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

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5

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

• A

• B

• C

• D

Tags

Scatter Plots

Line of Best Fit

Statistics

Which of the following could be a possible line of best fit for the data?

• y = 3x + 0

• y = 5/6x + 490

• y = -2x + 470

• non linear

Tags

CCSS.8.EE.B.5

Imagine you're helping Zoe, Mia, and Isla find the perfect line of best fit for their scatter plot project. Which of the following lines do you think will earn them an A+?

• A

• B

• C

• D

Answer explanation

Line C is the best choice as it closely follows the trend of the data points in the scatter plot, minimizing the distance from the points to the line, which is essential for a strong line of best fit.

Tags

CCSS.8.EE.B.5

Which equation best represents the line of best fit shown below?

• y = 4x

• y = 6x + 4

• y = 3x + 4

• y = 4x + 4

Tags

CCSS.8.EE.B.5

• y = x ; 20
• y = x + 2 ; 22
• y = 2 ; 2
• y = 0.5x + 2 ; 12