Writing Equations (Independent and Dependent Variables)

​Writing Equations Involving 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:
1. Write equations involving the relationship of the independent and dependent variables.

Objectives:

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

Standard:

Multiple Choice

BELLWORK:

The variables that causes the change to the other quantity.

• Independent Variable

• Dependent Variable

Multiple Choice

BELLWORK:

It is considered as the OUTPUT.

• Independent Variable

• Dependent Variable

Multiple Choice

BELLWORK:

It is usually represent by variable X.

• Independent Variable

• Dependent Variable

Steps:
1. Identify the Independent and Dependent Variables.
2. Identify the relationship (add, subtract, multiply, divide).
3. Write the Equation.

​NOTE: You are always solving the DEPENDENT variable.

​Let's Practice

Multiple Choice

Madison wants to buy a guitar. She starts saving $35 each month.

Which quantity is your INDEPENDENT VARIABLE?

• Savings

• Number of Months

Multiple Choice

What is the DEPENDENT variable?

• Number of Miles Traveled

• Gallons of Gas

• Miles per Gallon

• Price per Gallon

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

Multiple Choice

What is the dependent variable?

• Rate of Pay

• Number of Hours

• Amount Earned

• Number of Minutes

Multiple Choice

Which value of r would complete the table for the equation $$r=35q$$ .

• 175

• 245

• 315

• 385

Multiple Choice

Monica has a juice stand. The table represents the number of glasses of juice Monica sells, x, and the amount she earns, $y.

Which equation best represents the amount earned by Monica?

• y= 5x

• y = 5 + x

• x = 5y

• x = 5 + y

Multiple Choice

Madison wants to buy a guitar. She starts saving $35 each month.

Which equation represents Madison's savings (s) after (n) months?

• s = 35n

• n = 35s

• s = n +35

• n = s + 35

Multiple Choice

The table shows the costs of chicken wings at a local restaurant.

Which equation represents the cost (c) of w number of chicken wings?

• c = 1.40w

• c = 1.05w

• c = 0.75w

• c = 0.35w

Multiple Choice

The table shows how many miles Bret ran each week this summer.

Which equation represents the number of miles Bret ran (m) after w weeks this summer?

• m = w + 2

• m = w + 4

• m = 2w + 2

• m = 2w + 4

​EXIT TICKET

Wednesday 2/18 Exit Ticket (Writing Equations Involving Dependent and Independent Variables)