Proportional Relationships

Which graph is non-proportional?

• A
• B
• C
• D

Does this graph represent a proportional relationship?

• Yes
• No

Is the graph proportional or non proportional?

• proportional
• non proportional

The origin is located where in the coordinate plane?

• (0, 0)

• (10,10)

• (100, 100)

• (50, 50)

In the equation y = 14x, what is the constant of proportionality?

• y
• x
• 14
• y=14

Write an equation for this relationship.

• y=1/5x
• y=1/2x
• y=2x
• y=5x

The following graph is not proportional, why is that?

(Click the graph to enlarge the image.)

• We don't know what number it starts at.

• It does not pass through the origin.

• But it IS proportional!

The graph represents the number of words Taylor can type over a certain number of minutes. Which of the following statements is true?

(Click the graph to enlarge the image.)

• Taylor can write 6 words per minute

• Taylor can write 25 words per minute

• Taylor can write 50 words per minute

• Taylor can write 150 words per minute

What is the unit rate for the rain fall?

(Click on the graph to enlarge the image.)

• 2 cm per hour

• 1 cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

What makes a graph between two quantities proportional?

• It makes a straight line.

• The line goes through (0,0)

• It makes a curved line.

• It makes a straight line and passes through (0,0).