Interpreting Line of Best Fit

The equation of this line is y = -2.2x + 12.4. Using the equation of the line of best fit, how many mistakes would you expect to make after practicing for 3 hours?

• 5.4 mistakes

• 5.2 mistakes

• 6.4 mistakes

• 5.8 mistakes

Tags

CCSS.HSF.LE.B.5

The scatter plot shows data points and the line of best fit. Identify the association of the scatter plot.

• Strong Positive association

• Strong Negative association

• Moderate or weak positive association

• Moderate or weak negative association

Describe the association, if any, as linear or nonlinear.

• Linear

• Non-linear

• No Association

Tags

CCSS.8.F.A.3

Describe the association between the two variable, if any, as positive or negative.

• Positive association

• Negative association

• No association

The scatter plot shows data points and the line of best fit. Identify the association of the scatter plot.

• Strong Positive association

• Strong Negative association

• Moderate or weak positive association

• Moderate or weak negative association

The scatter plot shows data points and the line of best fit. Identify the association of the scatter plot.

• Strong Positive association

• Strong Negative association

• Moderate or weak positive association

• Moderate or weak negative association

Describe the association, if any, as linear or nonlinear.

• Linear

• Non-linear

• No Association

Tags

CCSS.8.F.A.3

Which of the following is the equation of the line of best fit? Use points (40, 15) and (80, 30) to help you find the slope.

• y = 0. 625x + 0

• y = 0.375x + 10

• y = 0.52x + 0

• y = 0.375x + 0

Which of the following is the equation of the line of best fit? Use points (2, 6) and (4, 1) to help you find the slope.

• y = 2.5x + 11

• y = -2.5x + 11

• y = -3x + 10

• y = -2x + 11

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The y-intercept of this line is 40. This means that if a student doesn't study, they will receive a 40.

• True

• False

Tags

CCSS.HSF.LE.B.5