ze of your graph. For example, you may want to label price in increments of 25. 3. Create a title for your graph by choosing a good or service for the data to represent. 4. Using the data table below, plot a demand curve and label the curve "D." 5. Add a curve to your graph that represents a DECREASE in demand. Label the newcurve " D1." 6. Add another curve to your graph that represents an INCREASE in demand. Label the new curve D2." Price Quantity (In whole dollars) 50 900 75 800 100 700 125 600 160 600 175 400 200 300 225 200 250 100 g at least one factor from the TRIBE acronym, explain a situation that could have resulted in a demand or the product or service you chose for your graph