Independent and Dependent Variables

What is the independent variable in the statement?

Wait time, w, and number of people in line to get on a ride, p

• Independent variable: w

• Independent variable: p

What is the independent variable in the statement? Surface area of walls in a room, a, and the amount of paint used, p

• Independent variable: a

• Independent variable: p

What is the dependent variable in the statement? Surface area of walls in a room, a, and the amount of paint used, p

• Dependent variable: a

• Dependent variable: p

What is the dependent variable in the statement?

• Dependent variable: d

• Dependent variable: h

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

A(n) _____________ variable depends on or is changed by another variable.

• dependent

• independent

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

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

The graph shows the distance traveled by Ms. Luce's family on a road trip. They will travel 25 miles each hour. Which statement is true about the situation?

• the independent variable is distance

• the independent variable is d=25 t

• the dependent variable is time

• the dependent variable is distance

The graph shows the cost of mailing a package based on its weight.  Which statement is true about the situation?

• The dependent variable is total cost

• The dependent variable is weight

• The independent variable is total cost

• The independent variable is cost of a package