Algebra Representations of Two-Variable Relationships

• A

• B

• C

• D

• A

• B

• C

• D

What variable represents the independent variable?

• p

• d

Which equation best represents the relationship in this table?

• y = 9.6x

• y = 10.6x

• y = 9.6

• y = x + 9.6

Which values are the dependent variables?

• y- values

• x-values

• 
• 
• 
• 

• A

• B

• C

• D

Which situation can be represented by the equation y = 5x?

• Isaiah went to the store for X days.
  This is 5 times Y, the number of days his brother went to the store.

• Isaiah spent X dollars to buy a gift for his mom.
  He gave the cashier Y dollars and received $5 in change.

• Isaiah has Y dollars.
  This amount is 5 times X, the amount of money in dollars Isaiah's brother has.

• Isaiah is Y years old. 
  His age is 5 years greater than X, his brother's age in years.

Which list below shows the dependent quantities?

• 0, 1, 2, 3, 4, 5

• 0, 5, 10, 15, 20

• 10, 20, 60, 80, 100

• None of the above

Which situation can be represented by the equation y = 12x?

• A factory uses a total of Y gallons of water at a rate of 12 gallons per hour for X hours.

• A bakery serves a total of Y cakes in one day, in which 12 cakes are served during the first hour and X meals are served during the remaining hours.

• A restaurant prepares a total of Y batches of pizza sauce from 12 pounds of tomatoes, with each batch weighing X pounds.

• A company manufactures a total of 12 plates every hour, with X of the plates made are blue and Y of the plates are green.