Suppose the following demand for iPhone apps:
Price (per app) $10 $9 $8 $7 $6 $5 $4 $3
Quantity
Demanded (millions) 2 3 4 5 6 7 8 9
a. At $9, what quantity is demanded?
b. If the price drops to $6, what quantity is demanded?
c. Is demand elastic or inelastic in that price range?
d. If advertising convinces people to demand 3 million more apps at every price, how many apps will be demanded at a price of $9?
e. Graph the above answers, using Point A for (a), Point B for (b) and Point C for (d).