Question: The function f(x) = 1.1x 3 - 35x 2 + 264x + 557 models the number of discharges, f(x), under dont ask, dont tell x

The function f(x) = 1.1x³ - 35x² + 264x + 557 models the number of discharges, f(x), under “don’t ask, don’t tell” x years after 1994. Use this model and its graph, shown below, to solve Exercises 29–30. Number of Discharges 1200 1100 1000 900 800 700 600 T 01

a. Find the slope of the secant line, rounded to the nearest whole number, from x₁ = 7 to x₂ = 12.

b. Does the slope from part (b) underestimate or overestimate the average yearly decrease that you determined in Exercise 28? By how much?

Number of Discharges 1200 1100 1000 900 800 700 600 T 01 (4, f(4)) Graph of a Model for Discharges under "Don't Ask, Don't Tell" (0, f(0)) 2 f(x) = 1.1x - 35x + 264x + 557 3 (7, f(7)) 4 5 6 7 8 Years after 1994 (12, f(12)) 9 10 11 12 13 X

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