1. The problem asks us to determine which car generated the lowest income for the company over the whole year and to find out how much that income was. 2. To solve this, we need to analyze the income values for each car from the graph you provided. Since the graph is not visible here, the general approach is: - Identify the income values for each car from the graph. - Compare these values to find the minimum income. 3. The formula or method used here is simple comparison: if $I_1, I_2, \ldots, I_n$ are incomes from $n$ cars, then the lowest income $I_{min}$ is given by: $$I_{min} = \min(I_1, I_2, \ldots, I_n)$$ 4. Once the lowest income is identified, the corresponding car is the one that generated the lowest income. 5. Justification involves showing the income values for each car and highlighting the smallest one. Since the graph is not provided here, please check the income values on your graph, identify the smallest income, and note the corresponding car. If you provide the income values, I can help you calculate and confirm the answer.