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Unit Rate and Proportional Relationships Test Re ...

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  • What is the meaning of the unit rate in context?
    10 cm/min
  • How is a proportion formed?
    2 or more equivalent ratios
  • Explain 2 ways you can know this data is NonProportional.
    Ratios of y/x are not equal and it does not pass through the origin
  • Is the data proportional? If yes, what is the value of k?
    Proportional, k = -5/2 or -2.5
  • Kevin put 5 gallons of gas in his car and it cost him $10.50. How much did each gallon of gas cost that Kevin pumped into his car?
    $2.10 per gallon
  • This distance traveled is proportional to time. What is k?
    k = 45 or 45 mi/hr
  • Proportional or NonProportional?
    NonProportional
  • Is the data proportional? If yes, what does k =
    Yes - it is straight and through the origin; k = 1000
  • This data is proportional. What is the equation of the line?
    y = 6x
  • P or NP
    Proportional
  • How is a unit rate expressed as a ratio with a _____________ of _______
    Ratio with a denominator of 1
  • Jess walked 6.5 miles in 2 hours. If she continues at this rate, how many miles can she walk in 4.5 hours? Round to the nearest whole number
    About 15 miles
  • Is this data proportional? If yes, write an equation using the constant of proportionality.
    y = 18.5x
  • What is the better deal: 13 lb bag for $25.50 or a 27 lb bag for $32.25. Which bag is the better buy?
    27 lb bag
  • How do you write the equation of a proportional relationship?
    y = kx
  • Is the data Proportional or NonProportional? Explain.
    NP - doesn't pass through the origin
  • Proportional or Non Proportional?
    Proportional
  • What is the meaning of the unit rate in context?
    3 ft/min
  • Is this data proportional? If yes, what is the value of k?
    Yes, k=1.5
  • How many lines represent a proportional relationship?
    1
  • How do you know the data is proportional?
    k = 3 for all ratios of y/x