Direct Variation Graphs Equations Slope and Tables

Choose the graph that could represent a direct variation.

• 
• 
• 
• 

How is the constant (k) for a direct variation calculated?

• By dividing the input (x) by the output (y).

• By multiplying the output (y) by the input (x).

• By multiplying the input (x) by the output (y).

• By dividing the output (y) by the input (x).

What is the slope of an equation with points at (0, -1) and (-3, 3)?

Choose all that apply. "A slope can be described as-

• change in y over the change in x."

• change in x over the change in y."

• the rate of change."

• run over the rise."

• rise over the run."

What is the slope of a line that runs through points (-2, 7) and (4, 19)?

Which of the following tables indicate a direct variation?

• 
• 
• 
• 

Which of the following equations represents the data in the table?

The art museum charges an initial membership fee of $50.00. For each visit the museum charges $15.00. What is the slope of the line, if graphed?

• 50

• 15

• 65

• 45

Check whether the tables, graphs, and equations below represent direct variation.

• 
• 
• 
• 

The Pete’s Pets chain of pet stores is growing. The table

below shows the number of stores in business each

month. How many stores will be in business by December?

• 0

• 3

• 30

• 33