Question 285865: 3. The yearly cost T, in thousands of dollars, of tuition and required fees at a private college (includes two- and four-year schools and does not include room and board) can be approximated by where n is the number of years since 1985. That is, corresponds to 1985, corresponds to 1990, and so on. Show your work and explain each answer.
Source: Statistical Abstract of the United States, 2003
a. Find the cost of tuition in 1985, 1996, 2000, and 2004.
b. Graph the equation and then use the graph to estimate the cost of tuition in 2005.
c.Predict the year in which the cost of tuition will be $23,000. Explain your answer.
4.Show that the ordered pairs (-4, -3) and (-1, 3) are solutions of the equation . Then use the graph of the straight line containing the two points to determine another solution. Show your work and explain your answer.
Answer by stanbon(75887)   (Show Source):
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