Making Equations from Line of Best Fit

The linear model to represent the distance (in miles) traveled given the time (in hours) driving is  m=-1.79+61.93h. Predict how far a person will travel driving 10 hours. 

• 617.51 miles

• 621.09 miles

• 100 miles

• 0.19 miles

Tags

CCSS.HSF.LE.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

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

Tags

CCSS.8.EE.B.5

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

• Yes

• No

Tags

CCSS.8.EE.B.5

The graph shows a line of best fit for data collected on the amount of income earned by lawn companies in relation to the number of yards mowed.  What is the equation of the line of best fit?

• y = 30x

• y = 30x + 300

Tags

CCSS.HSF.LE.B.5

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

The graph above shows a line of best fit for data collected on the distance bicyclists have remaining in relation to the amount of time they have been riding.  What is the equation of the line of best fit?

• y = -25x + 170

• y = 25x + 170

Tags

CCSS.HSF.LE.B.5

The graph below shows the value of a computer given the age of the computer. Which equation would best fit the data?

• y = -250x + 2000

• y = 250x + 2000

• y = -250x - 2000

• y = 2000x -250

Tags

CCSS.8.EE.B.5

What is the equation of the line of best fit?

• y= 6x + 2

• y = -2x +6

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

• Yes

• No

Tags

CCSS.8.EE.B.5