Dependent and Independent Variables

The table shows the ounces of water,y, need to for x number of servings.

Based on the information in the table, which equation can be used to model the relationship between x and y?

• y = 2x

• y = x + 2

• y = 18x

• y = x + 18

Which of these equations represent the table above if the number of tickets represents x and the total cost represents y?

• y=2x
• y=54x
• y=27x
• y=x

The graph shows the total money earned at a fundraising car wash. Which equation can be used to find the total earned y for the number of cars washed x?

• y = x + 5

• y = x/5

• y = x - 5

• y = 5x

Which equation matches the table?

• y = x + 5
• y = 5x
• y = x - 5
• x = y - 5

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

Name the INDEPENDENT variable from the table below.

• words
• minutes

A food service worker earns $12 per hour. Write an equation to determine how much money, m, the worker can earn for any number of h hours?

• m = 12 + h

• h = 12m

• m = 12h

• h = 12/m

Choose the best explaination

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

Write an equation for this relationship.

• y=18x
• y=18.50x
• y=22.50x
• y=22x