Scatter Plots, Line of Best Fit, Equations

Which of the following would be the most accurate equation for the scatter plot?

• y = -2x - 7

• y = -x + 7

• y = 4x + 7

• y = 25x + 7

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

• y = -1.5x + 20

• y = -0.5x + 19

• y = x + 20

• y = .7x + 15 

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

• y = -(5/8) x + 170

• y = (5/8) x + 170

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 = (3/2) x

• y = 30x

• y = 30x + 300

• y = (3/2)x + 300

What is the equation of the line of best fit?

• y = -25x + 170

• y = -5/8x + 170

• y = 25x + 170

• y = 5/8x + 170

Using Desmos.com, find an equation of the line of best fit for the data. Round the slope and the y-intercept to the nearest hundredth. Select the correct line of best fit.

What is the best equation of the line of best fit?

• y= 2x+3

• y=3x+2

What is the equation of the line of best fit?

• y= 2x+3

• y=3x+2

What is the equation of the line of best fit?

• y= 6x + 2

• y = -2x +6

What is the equation of the line of best fit? Read the units carefully on this one!

• y = 750 x + 9500

• y = - 750 x +11000

• y = (3/4) x + 11

• y = - (3/4) x + 11000