Line of Fit Scatter Plot

Click on Image. Blue points are NOT necessarily data from the set.

• y = -5/8 x + 9

• y = 5/8 x + 9

• y = -8/5 + 9

• y = 8/5 - 9

Although we use the BLUE points to write an equation that represents the ORANGE data, are the BLUE points DATA FROM THE SET?

• Yes, they have to be.

• No, they can't be.

• Not necessarily. They could be, but don't have to be.

• a

• b

• both

• neither

• a

• b

• c

• d

• a

• b

• c

• d

Alisha made a scatter plot that compares the number of minutes the members of the basketball team played to the points each scored during a game. She drew a line of best fit as shown. Does her line of best fit accurately represent the data set?

• Yes

• No

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

• A

• B

• C

• There is no line of best fit for this graph because there is no trend.

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

Click the correct answers

REMEMBER:

there should be approximately the same number of points above the line as below the line