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Proportional relationships

Quiz by Kristin Dunbar [Mack MS]

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13 questions
Show answers
  • Q1
    Which equation represents a proportional relationship?
    y = 3x + 5
    y = 3x - 1
    y = x^2
    y = 3x
    30s
  • Q2
    If a car travels 180 miles in 3 hours at a constant speed, what is the constant of proportionality?
    90
    30
    60
    45
    30s
  • Q3
    A recipe calls for 4 cups of flour for every 2 cups of sugar. What is the constant of proportionality between the flour and sugar?
    0.5
    1.5
    2
    4
    30s
  • Q4
    A taxi charges $25 for a 5-mile journey. What is the constant of proportionality for the cost per mile?
    10
    125
    4
    5
    30s
  • Q5
    A bicycle wheel rotates 300 times in 5 minutes. What is the constant of proportionality in rotations per minute?
    75
    65
    50
    60
    30s
  • Q6
    A recipe requires 3 teaspoons of salt for every 9 cups of water. What is the constant of proportionality for the teaspoons of salt per cup of water?
    3
    \frac{1}{9}
    \frac{1}{3}
    \frac{1}{2}
    30s
  • Q7
    A car consumes 45 gallons of fuel after traveling 540 miles. What is the constant of proportionality for miles per gallon?
    10
    12
    9
    15
    30s
  • Q8
    A farmer harvests 320 apples from 8 trees. What is the constant of proportionality for the number of apples per tree?
    30
    40
    35
    50
    30s
  • Q9
    If a person earns $15 per hour and works 8 hours a day, how much will they earn in a 5-day workweek?
    $750
    $525
    $600
    $900
    30s
  • Q10
    If y is directly proportional to x and y = 12 when x = 3, what is the value of y when x = 6?
    30
    18
    36
    24
    30s
  • Q11
    A car travels 150 miles in 3 hours. Assuming the speed is constant, how far will it travel in 5 hours?
    200 miles
    250 miles
    180 miles
    300 miles
    30s
  • Q12
    The cost c of purchasing apples is directly proportional to the number of pounds p bought. If 5 pounds of apples cost $10, how much will 8 pounds cost?
    $12
    $18
    $20
    $16
    30s
  • Q13
    A recipe for a cake requires 3 cups of flour for every 2 cups of sugar. If you have 9 cups of flour, how much sugar is needed to keep the proportions the same?
    5 cups of sugar
    4 cups of sugar
    6 cups of sugar
    8 cups of sugar
    30s

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