Best Fit Curve

Match the table with the correct equation:

• y = -.08x² + 5.94x +28.80

• y = -1.2x² + 3.2x +3.2

• y = 0.5x +9

• y = 0.7 x² + 2.7x +8.7

Which equation corresponds to the values in this table?

• y = 4 - x

• y = 4 - x²

• y = x² - 4

• y = -2x - 1

Using the Curve of Best fit for #11. Predict the value of y when x = 3.

• 5

• 7

• 9

• 11

Tags

CCSS.8.EE.C.7B

The number of complaints a company received at the end of each of six weeks is shown in this table. Based on the line of best fit, how many complaints should the company expect at the end of week 8?

• 75

• 91

• 96

• 110

Which equation most closely represents the line of best fit for this data?

find line of best fit using calculator through these points (0,0)(1,2) (3,5) (6,7)

• y=65x+7

• y=1.14x+.64

• y=1.5x+64

Tags

CCSS.8.EE.B.5

The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.

• f(x) = 25.05x + 5.57

• f(x) = 5.57x + 25.05

• f(x) = -5.57x + 25.05

• f(x) = 5.57x - 25.05

find line of best fit through these points

• y=1.27x+1.615

• y=2x+7

• y=1.7x+8

Tags

CCSS.8.EE.B.5

Caroline weighs her new puppy every month to see how much it has grown. If age is a and weight is W, which of these is the correct equation for the line of best fit?

• W = 3.6 + 8.9

• W = 3.6a + 8.9

• a = 8.9W + 3.6

• W = 8.9a + 3.6