Question: Suppose LightBright and Bulbs4You were the only two suppliers of lightbulbs in Springfield. Draw the supply curve for the lightbulb industry in Springfield from the following tables for the two companies. To create this "lightbulb industry supply curve," note that you'll add up the total number of bulbs that the industry will supply at a price of $1 (15 bulbs), and then do the same for the prices of $5, $7, and $10.
