How do you use an equation to show the relationship between two variables?

j = 10s

In this lesson you will learn how to show the relationship

between independent and dependent variables

by writing an equation.

Let’s Review

An equation is a mathematical sentence with an equal sign.

Core Lesson

Carlie is selling jars of strawberry jam to raise money for her soccer team. How much money will

she make?

the amount of money earned

the number of jars of jam

= m

= s

Core Lesson

5j = m

coefficient

5 $$(1)5 = $5(2)5 = $10

Which variable is independent? Which

is dependent?

independent variable dependent

variable

Core Lesson

j

(number of jars)

m

(amount of money)

1 $5.00

2 $10.00

4

3

5

$15.00

$20.00

$25.00

50

45

40

35

30

25

20

15

10

50

109876543210am

ount

of

money

jars of strawberry jam

Jars of Strawberry Jam

(3)5 = $15(5)5 = $25

A Common Misunderstanding

dependent variable

The amount of money earned influences the

number of jars?

independent variable

Independent Variable:

Dependent Variable:

is the variable that is changing.

is the variable that is affected by the change.

5 $$

In this lesson you have learned how to show the relationship between

independent and dependent variables

by writing an equation.