Envision you work for a firm where the demand curve has been estimated to be Q = 1200 – 4p. 

Create a table with three columns, one with price (P), one showing your anticipated sales (Q), and
another with total revenue (TR). Create the P column at the far left, start price at 0 and increase the price by 30 until you reach the value where quantity sold is equal to zero. You will make quantity a function of price (it will be easiest to write a formula).