In 1990, a company had a profit of $1.3 million. In 1992, the company had a profit of $1.2 million. Write a linear equation giving the profit P, in millions of dollars, in terms of the year, t. Let t=0 represent 1990.

Answer 1

P = t_o + 0.5*t
Check it carefully. Substitute 1.2 million for t_o, then t = 2 years.