INDEPENDENT AND DEPENDENT VARIABLES WORKSHEET

Problem 1 :

As a babysitter, you earn $5 for every hour you babysit.

Which is the dependent variable?

A) Number of hours you babysit

B) Number of children you babysit

C) Amount of money you earn per hour

D) Total amount of money you earn

Solution

Problem 2 :

Which is the independent variable in the following equation?

y = 3x + 9

A) y     B)  x       C) 3       D) 9

Solution

Problem 3 :

Mary can make 5 hair bows every hour.

Which is the independent variable?

A) Total number of hair bows Mary made

B) Number of hair bows made per hour

C) Number of hours Mary made bows

D) Price of each hair bow

Solution

Problem 4 :

Juan earns flat fee of $150 plus $20 for every hour he works decorating a house. Which graph correctly displays Juan’s earnings?

Solution

Problem 5 :

The table shows the number of hours it takes to mow a certain number of lawns.

which graph represents the relationship shown in the table ?

Solution

Answer Key

1)  Dependent variable = Total amount of money you earn

2)  x is the independent variable.

3) Price of each bow depends on number of bows she’s making.

4)  

5)   option (B)

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