REVIEW QUESTIONS In Questions 1-6, (a) Determine which of the viewing windows a-

Question

REVIEW QUESTIONS In Questions 1-6, (a) Determine which of the viewing windows a-e shows a complete graph of the equation. (b) For each viewing window that does not show a complete graph, explain why. (c) Find a viewing window that gives a "better" complete graph than windows a-e (meaning that the window is small enough to show as much detail as possible, yet large enough to show a complete graph) (a) Standard viewing window (b) -10 s x 10, -200 s y s 200 (c) -20 s 20,-500 s y 500 (d) -50 s x 50,-50 s y s 50 (e) -1000 s 1000,-1000 ys 1000 1. y=2x3-.8x2-2.2x + 6 2. y = x3-11x2-25x + 275 3, y = x4-7x3-48x2 + 180x + 200 4, y=x3-6x2-4x + 24 5. y = .03x5-3x3 + 69.12x 6. y = .00000002x6-.000001 4x5-.0001 7x4 + 0107x3.2568x2 12.096x In Questions 7-10, sketch a complete graph of the equation, and give reasons why it is complete.

Explanation / Answer

The graphs were generated for all the functions using a graphing utility. The adequate viewing windows are as under:

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