This is an individual demand curve describing the demand for cupcakes from the previous. Again, at $30 or $25 per cupcake, the customer would not buy any cupcakes. At $20 per cupcake, the customer would buy one cupcake. At $15 per cupcake, the customer would buy 3 cupcakes. At a cost of $10 / cupcake, the customer would buy 5 cupcakes. At $5/cupcake, the client would buy 8 cupcakes. the result is a curve sloping down to the right.