Constant of Proportionality Bell Ringer

Is the given table a proportional relationship? If so, what is the constant?

• Yes; 1/3
• Yes; 3
• Yes; 5
• No

Write the equation for the table given.

• y = 16x
• y=8x
• y=12x

Write an equation for this relationship.

• y = 18x
• y = 18.50x
• y = 22.50x
• y = 22x

Which best describes the graph represented in this table?

•  proportional
• non-proportional

The constant of proportionality can be found by finding the __________  _____________.

• unit rate
• ratio rate
• proportion answer
• rational number

Alycia earned $20.40 in 3 hours. What is her unit rate in dollars per hour?

• $7 per hour
• $6 per hour
• $6.80 per hour
• $17.40 per hour

If Justin can type 408 words in 4 minutes, how many words can he type per minute?

• 102 words per minute
• 100 words per minute
• 400 words per minute
• 412 words per minute

Identify the constant of proportionality.

• k = 2x

• k = 2

• k = 4

• none (not proportional)

Identify the constant of proportionality.

• k = 5

• k = 1/5

• k = 1

• k = 2.5

• none (not proportional)

Write an equation that represents the relationship between the weight(x) and the cost(y).

• y = 1/2 x

• y = 1/4 x

• y = 2x

• y = 4x