CONVERSION GRAPHS

• What do conversion graphs allow us to do?


  Convert between one unit and another
• What is typically represented on the x-axis of a conversion graph between miles and kilometers?


  Miles
• What does the straight line on a conversion graph represent?


  The actual relationship between the two units
• How would you find out how many kilometers are in 30 miles using a conversion graph?


  Find 30 miles on the x-axis and draw a vertical line to the main line
• What is the process to convert 30 miles to kilometers using the graph?


  Draw a vertical dashed line to the main line, then a horizontal line to the y-axis
• How many kilometers are equivalent to 30 miles according to the example?


  48 kilometers
• If a lion walked 75 kilometers, how would you find out how many miles that is?


  Find 75 kilometers on the y-axis and draw a line to the main line
• How many miles did the lion travel if he walked 75 kilometers?


  47 miles
• What should you do if you need to convert a value that isn't on the graph?

  Work out the conversion for a smaller number and scale it up
• How can you find out how many kilometers are in 500 miles using the graph?


  Convert a smaller number of miles and scale it up
• What is the equivalent of 50 miles in kilometers according to the example?


  80 kilometers
• If 50 miles is equivalent to 80 kilometers, how many kilometers are in 500 miles?


  800 kilometers
• What is the main use of conversion graphs?


  • To convert between different units
  • To visualize the relationship between two quantities
  • To facilitate quick calculations
• Describe the steps to convert kilometers to miles using a conversion graph.


  1. Locate the value on the y-axis (kilometers).
  2. Draw a dashed line to the main line.
  3. Draw a vertical dashed line down to the x-axis to find miles.
• Describe the steps to convert miles to kilometers using a conversion graph.


  1. Locate the value on the x-axis (miles).
  2. Draw a vertical dashed line to the main line.
  3. Draw a dashed horizontal line to the y-axis to find kilometers.