Barbie Bungee and Follow the Bouncing Ball Projects

The table shows the number of bacteria at different times during an experiment. Use a linear regression equation to predict how many bacteria will there be after 24 hours.

• 35

• 277

• 463

• 819

• 12

• 17

• 20

• 23

In an experiment to determine the relationship between the initial drop height and rebound height of a ball, which of the following is the dependent variable?

• Initial drop height

• Rebound height

• Type of ball

• Surface type

Which of the following is the independent variable in a study analyzing the effect of initial drop height on the rebound height of a ball?

• Rebound height

• Initial drop height

• Air resistance

• Ball color

In a linear regression analysis using Desmos, which of the following steps is necessary to create a regression line?

• Enter the data points and use the "y ~ mx + b" function

• Use the "y = ax^2 + bx + c" function

• Enter the data points and use the "y = mx + c" function

• Use the "y = a \cdot \sin(bx)" function

If the initial drop height of a ball is doubled, and the functional relationship is linear, what happens to the rebound height?

• It remains the same

• It doubles

• It triples

• It halves

Which of the following best describes a control variable in an experiment involving linear regression?

• A variable that is changed to see its effect

• A variable that is kept constant

• A variable that is measured

• A variable that is predicted

In a linear regression model, what does the slope represent?

• The y-intercept

• The rate of change of the dependent variable with respect to the independent variable

• The maximum value of the dependent variable

• The minimum value of the independent variable

• 2

• 3

• 5

• 0

• 0

• 2

• 4

• 6