Use the table feature of a graphing calculator to do these exercises. (See Example 1.)Busi...

Use the table feature of a graphing calculator to do these exercises. (See Example 1.)

Business The sales for durable-goods industries (in billions of dollars) in the United States are approximated by h(x) = .252x3 − 7.53x2 + 156x + 1202, where x = 0 corresponds to the year 1990.†

(a) Create a table that gives the amount of sales for the years 2000–2006.

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(b) Assuming the trend remains valid, make a table for the amount of sales in years 2010–2014.

Example 1

Business

Use the table feature of the graphing calculator to find the projected sales of the company in Example 10 for years 5 through 10.

Enter the sales equation y = .07x2 − .05x3 + 2x2 + 7x + 62 into the equation memory of the calculator (often called the Y = list.) Check your instruction manual for how to set the table to start at x = 5 and go at least through x = 10. Then display the table, as in Figure 3.2. The figure shows that sales are projected to rise from $184, 500 in year 5 to $982, 000 in year 10.

†U.S. Census Bureau.