chapter 9 review

On a graph, which axis shows the dependent variable?

• x-axis
• y-axis
• neither
• it changes

A(n) _____________ variable depends on or is changed by another variable.

• dependent
• independent

Name the INDEPENDENT variable from the table below.

• words
• minutes

In the table, Bubbles is the ______________.

• independent variable

• dependent variable

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?

• s

• t

Sophie earned $5 for every A she got on her report card.

m = money

A = A on report card

The dependent variable is:

• m = money

• A = A on report card

Which of the following is the label for the independent variable.

• Money Collected

• Raising Money

• Boxes Sold

• None of the above

Independent means

• an amount that can stand on its own
• an amount that depends on another amount

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

• Number of tickets (t)
• Cost (c)

A food service worker earns $12 per hour. How much money, m, does the worker earn on a shift of h hours? Identify the dependent variable.

• money

• hours