Comparing Proportional Relationships

Is this relationship proportional or non-proportional?

Joey started mowing yards this summer. He charges $10 for every yard he mows.

• Proportional

• Non-Proportional

Is the relationship proportional or non-proportional?

Rachel just started learning how to type in her keycode class. Each week her words per minute increases by 3 words.

• Proportional

• Non-Proportional

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $35 per pound

• $5 per pound

• $0.125 per pound

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

• y

• x

• 14

• y=14

Write an equation for this situation.

• y=9.75x

• y=19x

• y=19.25x

• y=9.5x

Does the equation show a proportional relationship?

• Yes

• No

Which best describes the equation?
y = 75x

• Proportional

• Nonproportional

Does this graph represent a proportional relationship?

• Yes, because the line is pretty.

• No, because the line goes through the origin.

• Yes because the line goes through the origin.

• No, because the graph is non-proportional.

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.

Select all true statements

• A is not proportional but B is

• both pass through (0,0)

• y = 3x is the equation for table A

• y = 4x is the equation for table B

• if graphed, these tables would make the same line