Independent and Dependent Variables

​Independent and Dependent Variables

DO NOW:
1. Click the link in chat to join the Wayground Activity.
2. Have your Math notebook and pencil ready.

SWBAT:

• Recall dependent and independent variables.

• Identify the independent variable and the dependent variable in a relationship between two quantities.

Objective:

6.EE.C.9 Use variables to represent two quantities in a real-world problem that change inrelationship to one another

Standard:

• Represents OUTPUT values of a function.

• Are AFFECTED by another variable.

​Dependent Variable

• Represents INPUT values of a function.

• NOT AFFECTED by another variable.

​Independent Variable

​NOTE:

Dependent and Independent Variables can be represented in...

• Real-world problems

• Equations

• Tables

• Graphs

Let's Practice

Multiple Choice

Identify the dependent variable:

The cost of apples (c), and the number of pounds you buy (p)

• p = dependent

• c = dependent

Multiple Choice

Identify the dependent variable:

The number of minutes (m) spent talking on the phone, and the amount of the cell phone bill (b)

• m = dependent

• b = dependent

Multiple Choice

Identify the dependent variable:

The number of pages (p) read, and the time (t) spent reading.

• p = dependent

• t = dependent

Multiple Choice

Name the DEPENDENT variable from the table below.

• Minutes

• Words

Multiple Choice

Sarah 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?

• t

• s

Multiple Choice

Sophie earned $1 for every she got an A on her report card.

m = money

A = A on report card

The dependent variable is:

• m = money

• A = A on report card

Multiple Choice

A movie ticket is $8.50 per person. What is the independent variable?

• Cost

• Number of people

• Time

• Cinema

Multiple Choice

In order to earn extra spending money, Delaney babysits children after school. The greater the number of hours she babysits, the more money she earns.

Which of the variables is dependent?

• number of hours worked

• money earned

Multiple Choice

Sarah is participating in a walk-a-thon to raise money for local reading programs. The amount of money Sarah will raise depends on the distance she walks.

Which of the variables is dependent?

• amount of money raised

• distance walked

Multiple Choice

Carey and Justin are raising money to purchase books for the library. The more money they raise, the more books they will be able to purchase for the library.

Which of the variables is independent?

• amount of money raised

• number of books purchased after raising the money

Multiple Choice

What is the dependent variable?

• Rate of Pay

• Number of Hours

• Amount Earned

• Number of Minutes

Multiple Choice

What is the independent variable?

• Number of Miles Traveled

• Gallons of Gas

• Miles per Gallon

• Price per Gallon

Multiple Choice

Identify the Dependent and Independent Variables?

c represents cost and p represents pounds

• c (cost) - dependent

  p (pounds) - independent

• p (pounds) - dependent

  c (costs) - independent

Multiple Choice

3p = c

In this equation what is the dependent variable and what is the independent variable?

• Dependent: p

  Independent: c

• Dependent: c

  Independent: p

EXIT TICKET

Tuesday 2/17 Exit Ticket
(Dependent and Independent Variables)