Slope and Scatterplots

The equation of the line of best fit of a scatter plot is y = 6x − 9. What is the slope of the equation?

• -6

• -9

• 6

• 9

The equation of the line of best fit of a scatter plot is y = 12x + 7. What is the slope of the equation?

• 12

• -12

• -7

• 7

The equation of the line of best fit of a scatter plot is y = −5x − 2. What is the slope of the equation?

• -5

• -2

• 2

• 5

• Linear positive association
• Nonlinear positive association
• Linear negative association
• Nonlinear negative association

Which set of data will the scatter plot represent a positive linear

• Set A
• Set B
• Set C
• Set D

Which graph represents a positive linear association between x and y?

• Graph A
• Graph B

Which graph represents a positive nonlinear association between x and y?

• Graph A

• Graph B

The equation of the line of best fit of a scatter plot is y = −4x − 6. What is the the y-intercept?

• 6

• 4

• -4

• -6

The equation of the line of best fit of a scatter plot is y = −7x − 2. What is the the y-intercept?

• -2

• -7

• 2

• 7

What type of association does the graph show between x and y?

• Linear positive association

• Nonlinear positive association