Equations for Lines of Best Fit

Find the equation for the line of best fit.

• y = -0.75x + 9

• y = 0.8x + 9

• y = -1.33x + 9

• y = -0.85x - 9

What is the equation of the line of best fit?

• y = 0.83x + 0.98

• y = 1.5x - 0.83

• y = -0.9x + 1.02

• y = 1.21x + 1.01

Tags

CCSS.8.EE.B.5

Identify the y-intercept and use it to pick the correct linear equation.

• y = 2x + 1.9

• y = -3x + 4

• • y = 1.4x - 2.8

• • y = -x - 4

What is the y-intercept, use it to pick the correct linear equation:

• y = - 0.007x + 14

• y = - 0.007x + 34

• y = - 0.007x + 1500

• y = - 0.007x + 4100

Tags

CCSS.HSF.LE.B.5

Write the equation of the line. Eliminate bad answers first!

• y = -1/3x + 2

• y = 1/3x - 2

• y = 3x + 2

• y = -3x - 2

What is the y-intercept? Use it to pick the correct linear equation:

• y = 5x + 45

• y = 5x + 50

• y = 5x + 55

• y = 5x + 60

Tags

CCSS.HSF.LE.B.5

• y = -5/8x + 6

• y = 5/8x + 6

• y =-8/5x + 6

• y = 8/5x + 6

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

Write an equation for the given trend line

• y= 0.4x

• y= 2.5x

• y= -0.4x

• y= -2.5x