7th Math: Investigation 9

What type of relationship is a direct variation.

• proportional

• non-proportional

What does "k" stand for in the direct variation equation?

• constant of equality

• constant of proportionality

• constant of non-proportionality

Which of the following is the equation format for direct variation?

• y = mx + b

• y = kx

Does the graph show a direct variation?

• Yes

• No

Does the given graph show a direct variation?

• Yes

• No

Is the given table a direct variation? If so, what is the constant?

• Yes; 1/4
• Yes; 4
• Yes; 2
• No

Based on this situation, graph the function.

Amy runs 2 blocks every 5 minutes.

Based on this situation, graph the function.

Gavin read 2 pages every minute.