Dependent and Independent Variables

Dilcia wants to know how drinking milk affects how tall Monica grows. Which is the independent variable?

• Monica's growth

• drinking milk

Identify the independent variable

The number of hamburgers, h, sold and the dollar amount of sales, s taken in

• h

• s

Sophie is bringing treats to her elementary school class on her birthday. The number of treats she brings in is based on the number of students in her class.

t = the number of treats

s = the number of students

Which of the variables is INDEPENDENT?

• s

• t

Grace is bringing treats to her Algebra 1 class on her birthday. The number of treats she brings is based on the number of students in her class.

Which of the variables is independent?

• number of students

• number of treats

Jimmy earned $8 for every pizza he delivers.

m = money (dollars)

p = number of pizzas delivered

The dependent variable is:

• m = money

• p = number of pizzas delivered

Mr. Hays is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball

• Force acting on the ball

• Height that the ball bounces

• Height from which the ball is dropped

Which label best describes the dependent quantities shown in the table?

• Number of tickets (t)

• Cost (c)

On a graph, which axis shows the dependent variable?

• x-axis

• y-axis

• neither

• it changes

On a graph, which axis shows the independent variable?

• x-axis

• y-axis

• neither

• it changes

Which of the following is the label for the independent variable.

• Money Collected

• Raising Money

• Boxes Sold

• None of the above