Identify Proportional Tables and Graphs

What makes a graph proportional?

• It is a straight line.

• It goes through the origin.

• It does not go through the origin.

• If it goes down instead of up.

Which of the following tables are proportional? (You may select more than one!)

• 
• 
• 

What is the unit rate for the table?

• $1 / 3 watermelon

• $3 / 1 watermelon

• 1/3 watermelon / pound

• $0.33 / 1 watermelon

What is a way I can tell if a table is proportional?

• It goes through the origin

• The line goes up.

• You can't.

Is this table proportional?

• Yes

• No

Is the graph proportional or non proportional?

• proportional

• non proportional

What is the constant of proportionality?

• k = 15 gallons of water per minute

• k = 1/15 gallons of water per minute

• k = 15 minutes per gallon of water

• k = 1/15 minute per gallons of water

Which equation would math this proportional relationship?

• y = 45x

• y = 15x

• y = 30x

• y = 20x

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

• Yes; 1/3

• Yes; 3

• Yes; 5

• No

Which of the tables above represents a proportional relationship?

• a & c

• a, b & c

• a, c & d

• all of them