Independent and Dependent Variables

What is the algebraic equation for this table?

• y = x + 3

• y = 3x

• y = x ÷ 3

• y = x - 3

Name the DEPENDENT variable from the table below.

• minutes

• bubbles

On a graph, which axis shows the independent variable?

• x-axis

• y-axis

• neither

• it changes

On a graph, which axis shows the dependent variable?

• x-axis

• y-axis

• neither

• it changes

In the equation y = 2x - 4, what is the dependent variable?

• 2x

• x

• -4

• y

The x-axis is also called your ​ ​ (a)   variable and your ​ (b)   .​

• independent

• dependent

• input

• output

The dependent variable is:

• x

• y

Which is the dependent variable?

• x

• y

• -1/2

• 4

Elizabeth hired a cleaning service to clean her house. To find C, the total cost of cleaning her house, she used the following equation.

C = 7.5x + 25

What is the dependent variable for the equation?

• 7.25

• 25

• C

• x

Which is the dependent variable?

• x

• y

• -1/2

• 4