The following table shows the number, in millions, graduating from high school in the United States in the given year.t After 1992, the number of high school graduates has increased each year. Year...

Extracted text: The following table shows the number, in millions, graduating from high school in the United States in the given year.t After 1992, the number of high school graduates has increased each year. Year Number graduating (in millions) 1985 2.83 1987 2.65 1989 2.47 1991 2.29 (a) By calculating differences, show that these data can be modeled using a linear function. (Let d be years since 1985 and N the number of graduating high school students, in millions.) 1985 to 1987 1987 to 1989 1989 to 1991 Change in d Change in N (b) What is the slope for the linear function modeling high school graduations? (Round your answer to two decimal places.) million per year Explain in practical terms the meaning of the slope. This means that each year ---Select--- high school students graduated. (c) Find a formula for a linear function that models these data. (Let d be years since 1985 and N the number of graduating high school students, in millions.) N = (d) Express, using functional notation, the number graduating from high school in 1994. N( Calculate that value. million