Use the table below to answer the following questions.

Table 4.2.2

Price of Jolt Price of Coke Income Level Jolt Sales 2014 $1.00 / can $1.00 / can $25,000 15,000 cases 2015 $1.00 / can $1.40 / can $25,000 25,000 cases 2016 $1.00 / can $1.40 / can $35,000 15,000 cases 2017 $1.40 / can $1.40 / can $35,000 5,000 cases