Independent and Dependent Variables Tables and Graphs

The table shows the relationship between d, the amount of money Elena has at the beginning of the day, and b, the amount of money she has after buying lunch. Which equation represents the relationship in the table?

• b = d - 3.75

• d = 2b

• d = b +1.25

• b = d + 3.75

The table below shows the relationship between x and y. What equation represents the same relationship?

• y = 4x

• y = x - 9

• y = ¹/4 x

• y = x + 9

Which list shows the dependent quantities in the graph?

• 5, 10, 15, 20, 25, 30, 35

• 3, 6, 9, 12, 15, 18, 21

• 1, 2, 3, 4, 5, 6, 7

• 2, 4, 6, 8, 10, 12, 14

Rolando’s backpack weighs 2.5 pounds when it is empty. The total weight in pounds, y, of Rolando’s backpack when it contains x pounds of books is represented by the equation y = x + 2.5. Which table best represents this situation?

• A

• B

• C

• D

• A

• B

• C

• D

Which statement is true about the set of numbers and its relationship to the graph?

• {1,2,3,4} represent the set of dependent quantities shown in the graph.

• {2,4,6,8} represent the set of independent quantities shown in the graph.

• {1,2,3,4,6,8} represent the set of independent quantities shown in the graph.

• {2,4,6,8} represent the set of dependent quantities shown in the graph.

What are the dependent quantities from the table?

• y=x

• y= -3x

• y=3x

• y=3x+9

The table shows a bicycle rider moving at a constant rate of speed. What is the dependent variable in this situation?

• rate

• time

• speed

• distance

Which table represents the graph?

• 
• 
• 
• 

Match the following using the given graph of a two-variable equation.

• 8 m/s

• Equation

• y = 4x

• Velocity after 2 minutes

• Velocity in m/s

• Dependent Variable x

• 5 seconds

• Independent Variable y

• Time in seconds

• Time it takes to reach a velocity of 20 m/s