Exercise II: Profit Consider the function f(x) = 3 ln (x – 1) – 2x+7 on the interval (1, 0). Do not use graphical justifications in this exercise, but you can use a calculator to approximate values. When you do, round to two decimal places. (a) Find lim f (x) and lim f(x). x→1+ x 00 (b) Find the intervals where f is increasing or decreasing. Show all steps. (c) Is there a global minimum? A global maximum? If so, what are their coordinates? B, show that (d) Show that f has exactly two roots. If these roots occur at x = a and x = 1.21 < a < 1.22 and 5.87 < a < 5.88. Clearly state the result(s) you are using here. (e) Now restrict the function to the interval [2.5, +∞). Show that f has an inverse function, and find the domain and range of this inverse function. (f) ƒ actually represents the total profit (in millions of Euros) from the production and sale of x thousand motorcycles. Explain, in words, what the answers for parts (c) and (d) mean in this context. You can also approximate values for a and B based on the answer in (d) (do not use a calculator to find a and B exactly).

Algebra & Trigonometry with Analytic Geometry
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ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
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Question e & f please

Exercise II: Profit
Consider the function f(x) = 3 ln (x – 1)–2x+7 on the interval (1, 0). Do not use graphical
justifications in this exercise, but you can use a calculator to approximate values. When you
do, round to two decimal places.
(a) Find lim f(x) and lim f (x).
x→1+
(b) Find the intervals where f is increasing or decreasing. Show all steps.
(c) Is there a global minimum? A global maximum? If so, what are their coordinates?
B, show that
(d) Show that f has exactly two roots. If these roots occur at x = a and x =
1.21 < a < 1.22 and 5.87 < a < 5.88. Clearly state the result(s) you are using here.
(e) Now restrict the function to the interval [2.5, +0). Show that f has an inverse function,
and find the domain and range of this inverse function.
(f) ƒ actually represents the total profit (in millions of Euros) from the production and
sale of x thousand motorcycles. Explain, in words, what the answers for parts (c) and
(d) mean in this context. You can also approximate values for a and 3 based on the
answer in (d) (do not use a calculator to find a and B exactly).
Transcribed Image Text:Exercise II: Profit Consider the function f(x) = 3 ln (x – 1)–2x+7 on the interval (1, 0). Do not use graphical justifications in this exercise, but you can use a calculator to approximate values. When you do, round to two decimal places. (a) Find lim f(x) and lim f (x). x→1+ (b) Find the intervals where f is increasing or decreasing. Show all steps. (c) Is there a global minimum? A global maximum? If so, what are their coordinates? B, show that (d) Show that f has exactly two roots. If these roots occur at x = a and x = 1.21 < a < 1.22 and 5.87 < a < 5.88. Clearly state the result(s) you are using here. (e) Now restrict the function to the interval [2.5, +0). Show that f has an inverse function, and find the domain and range of this inverse function. (f) ƒ actually represents the total profit (in millions of Euros) from the production and sale of x thousand motorcycles. Explain, in words, what the answers for parts (c) and (d) mean in this context. You can also approximate values for a and 3 based on the answer in (d) (do not use a calculator to find a and B exactly).
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