Identifying Independent and Dependent Variables in Math

What is the independent variable?

The number of students in a class, s, and the number of desks needed, d

• number of students in a class, s

• number of desks needed, d

• number of desks in a class, d

• number of students needed, s

What is the dependent variable?

The number of students in a class, s, and the number of desks needed, d

• number of students in a class, s

• number of desks needed, d

• number of desks in a class, d

• number of students needed, s

What is the independent variable?

The number of candles on a birthday cake, c, and that person's age, a

• number of candles on a birthday cake, c

• that person's age, a

What is the independent variable?

The height of a sunflower in inches, h, and the number of days since it was planted, p

• number of days the sunflower grows, g

• number of days since the sunflower was planted, p

• height of a sunflower in inches, h

In the equation y = 2x - 4, what is the dependent variable?

• 2x

• x

• -4

• y

What is the independent variable on this graph?

• Number of push ups

• Days

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

• Number of tickets (t)

• Cost (c)

Which is the dependent variable?

• x

• y

• -1/2

• 4

Which is the dependent variable?

• x

• y

• -1/2

• 4

What is the dependent variable?

• Tickets

• Number

• Cost of tickets

• number of tickets