8SP2 Line of Best Fit

• positive trend

• negative trend

• no trend

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

• f(x) = 25.05x + 5.57

• f(x) = 5.57x + 25.05

• f(x) = -5.57x + 25.05

• f(x) = 5.57x - 25.05

What is the line of best fit? use DESMOS

• f(x)= 5x+1.82

• cannot be determined

• f(x)= 1.82x + 5.02

• f(x)= 1.1x + 4.2

• positive trend

• negative trend

• no trend

What is the line of best fit? use DESMOS

• f(x)= 5x+1.82

• cannot be determined

• f(x)= 1.82x + 5.02

• f(x)= 1.1x + 4.2

What is the line of best fit? use DESMOS

• f(x)= 5x+1.82

• cannot be determined

• f(x)= 1.82x + 5.02

• f(x)= 1.1x + 4.2

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

• Yes

• No

What is the equation of the line of best fit

• y= -2x + 10

• y= 10x+ 2

• y= 10

Which line is the best line of best fit?

• a

• b

• c

• i don't see any lines

What are the coordinates of the outlier?

• (1,9)

• (9,1)

• (2,2)

• y=x