Is it Proportional?

Han's cell phone plan costs $200 to start. Then there is a $50 charge each month. Is there a proportional relationship between time and the cost of the cell phone plan?

• Yes, there is a proportional relationship.
• No, there is not a proportional relationship.

Emma completed 3 assignments in class. Each assignment is worth 10 points. Is there a proportional relationship between the assignments turned and total points?

• Yes, there is a proportional relationship.
• No, there is not a proportional relationship.

Emily is saving up money to go to a concert. She already has $105 saved and is saving $20 each week. Is there a proportional relationship between time and the total money saved?

• Yes, there is a proportional relationship.
• No, there is not a proportional relationship.

Jim started his new job at UofA. He earns $16 per hour. Is there a proportional relationship between time and the total money Jim earns?

• Yes, there is a proportional relationship.
• No, there is not a proportional relationship.

Which of the following is not proportional?

• y=3+x
• y=3x
• y=3-x
• y=3x+1

Which of the following is proportional?

• y=5+x
• y=5x+1
• y=5x
• y=5-x

Which of the following is not proportional?

• y=m-x
• y=m+x
• y=mx
• y=mx+b

Which of the following graphs is proportional?

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Which of the following graphs is proportional?

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Which of the following graphs is not proportional?

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