question: For the following exercises, use the graph in Figure 7, which shows the profit, y, in thousands of dollars, of a company in a given year, t, where t represents the number of years since 1980. The line chart is begin from (15,150) and goes to (25,130).
  
  Find the linear function  y,  where  y  depends on  t,  the number of years since 1980.
  
query_wo: Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
  Question: For the following exercises, use the graph in Figure 7, which shows the profit, y, in thousands of dollars, of a company in a given year, t, where t represents the number of years since 1980. The line chart is begin from (15,150) and goes to (25,130).
  
  Find the linear function  y,  where  y  depends on  t,  the number of years since 1980.
  
query_cot: Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
  Question: For the following exercises, use the graph in Figure 7, which shows the profit, y, in thousands of dollars, of a company in a given year, t, where t represents the number of years since 1980. The line chart is begin from (15,150) and goes to (25,130).
  
  Find the linear function  y,  where  y  depends on  t,  the number of years since 1980.
  
question_for_eval: For the following exercises, use the graph in Figure 7, which shows the profit, y, in thousands of dollars, of a company in a given year, t, where t represents the number of years since 1980. The line chart is begin from (15,150) and goes to (25,130).
  
  Find the linear function  y,  where  y  depends on  t,  the number of years since 1980.
  