Graph the expense and revenue functions.
a. Determine an appropriate maximum horizontal-axis value.
b. Determine an appropriate maximum vertical-axis value.
c. Sketch the graphs of the expense and revenue functions.
A company produces a security device known as Toejack. Toejack is a computer chip that parents attach between the toes of a child, so parents can track the child's location at any time using an online system. The company has entered into an agreement with an Internet service provider, so the price of the chip will be low. Set up a demand function-a schedule of how many Toejacks would be demanded by the public at different prices.