Calculating Directly & Inversely Proportional Quantities

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

Jamar ran 100 m in 25 seconds. How many meters did he run in 60 seconds?

(Hint - Use the inverse proportion: time = distance/speed)

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1. In a direct proportion (y = kx), x = 2 when y = 6. What is the constant of proportionality k?

2. In an indirect proportion (y=k/x), x = 4 when y = 2. What is the constant of proportionality k?

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About This Quiz & Worksheet

Calculations involving direct and inverse proportions involve specific mathematical formulas that you can practice with the use of this quiz. The questions are designed as problems for you to solve.

Quiz & Worksheet Goals

You will need to find solutions to problems that deal with:

  • Equations dealing with inverse proportions
  • Direct proportion formulas
  • Identifying proportions by their graphs

Skills Practiced

The quiz and worksheet will help you improve your skills in:

  • Reading comprehension - ensure that you draw the most important information from the related directly and inversely proportional quantities lesson
  • Problem solving - use acquired knowledge to solve practice problems with inverse and direct proportions
  • Knowledge application - use your knowledge to answer questions about proportion graphs

Additional Learning

Improve your understanding of direct and inverse proportions by studying the lesson that complements this quiz, entitled Calculating Directly & Inversely Proportional Quantities. Information covered by this lesson includes:

  • A definition of a direct proportion
  • Inverse proportion characteristics
  • How to graph both direct and inverse proportions
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