Equations for Lines of Fit

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

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

What is the equation of the line of best fit

• y= -2x + 10

• y= 10x+ 2

• y=2x+10

• y= 10

Tags

CCSS.8.EE.B.5

What is the equation of the line of best fit?

• y = -25x + 170

• y = -5/8x + 170

• y = 25x + 170

• y = 5/8x + 170

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

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.8.EE.B.5

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

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line given and write an equation.

• y = 0x +10

• y= 0.1x+10

• y= 10x +0

• y= 0.1x +0