Rules For Computing A Value

Cost Versus Weight

Work Time

Cost Versus Weight

  • Graph the formula c = 0.4w. Label the x-axis “weight” and the y-axis “cost.”
  • Write a problem using the information from the graph.
  • What is the independent variable in your problem?
  • Share your problem with a partner. Discuss whether your partner agrees that your problem can be answered using the information from the graph.
  • Challenge your partner to use the graph to answer your problem.

Hint:

For an idea for a word problem, look at the exercises from Lesson 2 that had to do with price.