Graph the functions you created in Problems C5 and C6. Describe any similarities or differences in the graphs.
One way to make these graphs is to create a table of values for each function, then plot and connect the points on each graph. Close Tip
A relationship is proportional if the ratio of inputs and outputs is the same for all inputs and outputs. This kind of relationship is also sometimes referred to as direct variation.
Look at the graphs you created in Problems C5 and C6. Use the graphs to decide whether or not either function represents a proportional relationship.
Video Segment In this video segment, the onscreen participants compare the graphs in Problem C7 and use the graphs to explain their observations about quadperson. Watch this segment after you have completed Problems C5-C8 and compare your observations about the graphs with those of the onscreen participants.
Would the graphs of two different proportional relationships intersect? Where?
You can find this segment on the session video, approximately 14 minutes and 34 seconds after the Annenberg Media logo.