Is it a proportion?

Does the table represent a direct variation (proportion)?

1. A table is a proportion if
   • there is a common factor that relates the x value with the y value
     • in other words, if x doubles, then y also doubles
   • the points form a line when graphed

Look at the values in the table. Do the they form a proportion? Check yes or no. If you need a hint, use the “Hide/Show the line” checkbox.