Graphs, Equations and Proportions

Graphs, Equations and Proportions

Multiple Choice

Write an equation for this relationship.

• y=18x
• y=18.50x
• y=22.50x
• y=22x

Multiple Choice

Which graph is non-proportional?

• A
• B
• C
• D

Multiple Choice

How do you know if a graph is proportional?

• The graph is a straight line.

• The graph is a straight line that passes through the origin.

• The line passes through the origin.

• The graph is a curved line that does NOT pass through the origin.

Multiple Choice

If an equation is proportional, then it is written in the form....

• y= mx + b

• y = kx

Multiple Choice

You earn $18 for every hour you work. Which equation represents this function?

• y=(18/2)x + 0
• y = 18x
• y = 2x + 18
• y = 18x + 2

Multiple Choice

What is the equation of the line?

• y = 20x
• y = x + 20
• y = 2x
• y = x + 2

Multiple Choice

A line is linear if it forms a straight line.  The graph has a straight line.  Which best describes this graph?

• linear and nonproportional
• linear and proportional
• nonlinear and nonproportional
• nonlinear and proportional

Multiple Choice

What is the constant of Proportionality for this table?

• 1/9
• 9
• 8

Multiple Choice

Is the graph proportional or non proportional?

• proportional
• non proportional
• both
• neither

Multiple Choice

Is the graph proportional or non proportional?

• proportional
• non proportional
• both
• neither

Multiple Choice

Choose the best explaination

• 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

Multiple Choice

What is the Constant of Proportionality (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

Multiple Choice

What is the Unit Rate?

• 60 miles/1 hour

• 120 miles/ 2 hours

• 1 mile/ 1 hour

Multiple Choice

Which graph is proportional?

• A
• B
• C and D
• All of the graphs are proportional

Multiple Choice

Does this graph represent a proportional relationship?  

• No, because it doesn't pass through the origin.
• Yes, because it doesn't pass through the origin.
• Yes, because it intersects the y axis.
• No, because it intersects the x axis.

Multiple Choice

What is the unit rate in this proportional relationship?

• 60 miles/1 hour
• 120 miles/ 2 hours
• 1 mile/ 1 hour

Multiple Choice

Is the graph proportional or non proportional?

• proportional
• non proportional

Multiple Choice

Why does this graph show a non-proportional relationship?

• Because it is proportional
• It goes through the origin
• It does not go through the origin
• It is a straight line

Multiple Choice

Is the graph proportional or non proportional?

• proportional
• non proportional

Multiple Choice

Is this graph proportional?

• Yes
• No

Multiple Choice

Which graph is non-proportional?

• A

• B

• C

• D