Independent and Dependent Variables

On a graph, which axis shows the independent variable?

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

The y- axis is the ___________________ number line in the coordinate plane.

• Vertical

• Diagonal

• Horizontal

• origin

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

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

• Number of tickets (t)
• Cost (c)

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

• Number of tickets (t)
• Cost (c)

On a graph, which axis shows the dependent variable?

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

Ty earns $12 per hour. Which of the following equations best represents how much money, m, he earns on a shift of h hours?

• m = 12h

• m = 12 + h

• h = 12m

• h = 12 + m

Ms. Shi is making a scrapbook. As she adds more photos, the scrapbook grows thicker.

p = the number of photos added

t = the thickness of the scrapbook

• t is the independent variable and p is the dependent variable

• p is the independent variable and t is the dependent variable

Each pizza at Pizza Hut, p, costs $5.50. Which of the following equations best represents the cost, c, of buying p, pizzas?

• m = 5.50 + c

• c = 5.50 + m

• p = 5.50m

• c = 5.50p