Slope of Scatter Plot

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

Q2. What is the relationship between the variables?

• Linear positive association

• Nonlinear positive association

• Linear negative association

• Nonlinear negative association

What does the slope mean in the context of the situation graphed?

• You burn 500 calories every 60 minutes of exercise.

• You eat 500 calories when you eat out 60 times.

• You burn 100 calories every 10 minutes of exercise.

• You should not exercise.

What does the slope represent in this situation?

• The sloth runs 1 feet in 3 minutes

• The sloth runs 3 feet in 1 minute

• The sloth runs fast

• The sloth runs 6 feet in 1 minute

The linear regression equation for the data is  y = 1.5x + 12.  Interpret the slope of the equation.

• The slope is (0, 1.5).  It means that a pizza with 0 toppings will cost $1.50.

• The slope is 1.5.  It means that it costs $1.50 per topping.

• There are 1.5 toppings.

• There are 1.5 pizzas.

What is a reasonable slope for this graph?

• -5

• -2

• 10

• 5

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

• Set A

• Set B

• Set C

• Set D

Match the scatter plot to the equation that could represent the equation of its trend line.

• y = 3x

• y=4x-2

• y = -x + 5

• y = -5x

• The relationship is not linear