Q1.2. (20 points) Suppose a user's linear data demand curve is described in the following. At a price of $0/GB, the user would consume 150 GB each month, and at a price of $60/GB, the user would not consume anything. Assume that the supply cost of the provider is $20/GB. Answer the following questions: * Q1.2.1. (4 points) Plot the demand curve. * Q1.2.2. (8 points) Consider the flat-rate pricing scheme and calculate the user consump- tion (in GB), utility, and surplus. * Q1.2.3. (8 points) Consider the usage-based pricing scheme and calculate the user consumption (in GB), utility, and surplus