Independent and Dependent Variables

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

• Number of tickets (t)

• Cost (c)

The independent variable is:

• s = stickers earned

• p = papers completed

Ms. Shi is making a scrapbook. As she adds more photos, the scrapbook grows thicker.

p = the number of photos added
t = the thickness of the scrapbook

• t is the independent variable and p is the dependent variable

• p is the independent variable and t is the dependent variable

The dependent variable is:

• m = money

• p = number of pizzas delivered

Which of the following equations match the table.

• x = 2y

• y = 2x

• y = x + 5

• x = y

A ​ ​ ​ (a)   variable changes in response to another variable.

• dependent

• independent

An ​ ​ (a)   variable causes the ​ (b)   variable to change..

• independent

• dependent

What is the independent variable in the statement? The number of pages read, p, and the time spent reading, t

• Independent variable: p

• Independent variable: t

What is the dependent variable in the statement?

• Dependent variable: p

• Dependent variable: c

What is the dependent variable in the statement? The number of minutes spent talking on the phone, m, and the amount of a cell phone bill, a

• Dependent variable: m

• Dependent variable: a