Identify Proportional Relationships Graph

REVIEW QUESTION
Is this table proportional or non-proportional?

• Proportional

• Non-Proportional

• both

• neither

Is the graph proportional and how do you know?

• The graph is proportional  because it is straight.

• The graph is proportional because it is straight AND passes through the origin.

• The graph is not proportional because it does not pass through the origin.

• The graph is not proportional because it is not straight AND it does not pass through the origin.

What is the constant of proportionality (miles/hour)?

• k=80

• k=20

• k=40

• k=160

What is the constant of proportionality?

• k=0.7

• k=1.25

• k=2

• k=1.5

What is the equation of the graph? (Hint: find the constant of proportionality.)

• y = 5x

• y = 10x

• y = 1x

What is the constant of proportionality?

Hint: Cost ($) / Hours

• k=1

• k=12

Match the correct equation to the graph

• y = 90x

• y = 9x

• y = 10x

• y = 2x

What is the unit rate in this proportional relationship?

• 60 miles/1 hour

• 120 miles/ 2 hours

• 1 mile/ 1 hour

What does the point (2, 94) represent in this situation?

• Every week, they earn $94.

• After 94 weeks, they save $2.

• After 1 week, they save $47.

• After 2 weeks, they save $94.

Which statement matches the graph?

• Emma can type 180 words in 4 minutes.

• Emma can type 60 words in 1 minute.

• Emma can type 270 words in 6 minutes.

• Emma types 0 words in 0 minutes.