A deli owner has determined that his revenue, y, from selling sandwiches each day is at most -0.05r2 + 67, where x represents the number of sandwiches he sells. To make a profit, his revenue must be greater than his costs, represented by the expression 1.51 + 45.
Write a system of inequalities to represent the values of x and y where the deli owner makes a profit. Then complete the statements.
The point (30,90) is
The point (60,160) is
of this system.
of this system.