3, Review Exerclses In Problems 1-3, for each pair of functions f and g, find: (b) (gof) (-2) (a) (fog) (2) 1. f(x) = 3x – 5; g(x) = 1 – 2r² (c) (f•f) (4) (b) (gog) (-1) 2. f(x) = Vx + 2; g(x) = 2x² + 1 %3D

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Question
1,7
Cat OF the time required to double
å lump sum of money (p. 330)
1 Model populations that obey the law of uninhibited
growth (p. 335)
2 Model populations that obey the law of uninhibited decay (p. 337)
3 Use Newton's Law of Cooling (p. 338)
4 Use logistic models (p. 340)
1 Build an exponential model from data (p. 346)
2 Build a logarithmic model from data (p. 348)
3 Build a logistic model from data (p. 348)
6,7
51
5.8
1,2
55
3
53, 56
4
54
5,6
57
5.9
1
58
59
3
60
Review Exercises
(b) (gof)(-2)
(a) (fog) (2)
1. f(x) = 3x – 5; g(x) = 1 – 2r?
(c) (fof)(4)
2. f(x) = Vx + 2; g(x) = 2x² + 1
Problems 4-6, find f ° g, g ° f, ƒ° f, and g º g for each pair of functions. State the domain of each composite function.
(b) (g°g) (-1)
3. f(x) = e*; g(x) = 3x – 2
4. f(x) = 2 – x; g(x) = 3x + 1
7 (e) Verify that the function below is one-to-one. (b) Find its inverse.
{ (1,2), (3, 5), (5, 8), (6, 10) }
8 The graph of a function f is given below. State why f is one-to-one. Then draw the graph of the inverse function f.
5. f(x) = V3x; g(x) = 1 + x + x?
x + 1
1
6. f(x) = 8(x) =
eview Exerdser
4
y = X
(3, 3)
-4
(2, 0) 4 X
(0, -2)
(-1,-3)
n Problems 9 and 10, verify that the functions f and g are inverses of each other by showing that f(g(x)) = x and g(f(x)) = x.
any values of x that need to be excluded from the domain of f and the domain of g.
Give
40)
4
1
Ex + 2
X - 4
;8(x)
9. f(x) = 5x – 10; g (x)
10. f(x)
1- x
%3D
Transcribed Image Text:Cat OF the time required to double å lump sum of money (p. 330) 1 Model populations that obey the law of uninhibited growth (p. 335) 2 Model populations that obey the law of uninhibited decay (p. 337) 3 Use Newton's Law of Cooling (p. 338) 4 Use logistic models (p. 340) 1 Build an exponential model from data (p. 346) 2 Build a logarithmic model from data (p. 348) 3 Build a logistic model from data (p. 348) 6,7 51 5.8 1,2 55 3 53, 56 4 54 5,6 57 5.9 1 58 59 3 60 Review Exercises (b) (gof)(-2) (a) (fog) (2) 1. f(x) = 3x – 5; g(x) = 1 – 2r? (c) (fof)(4) 2. f(x) = Vx + 2; g(x) = 2x² + 1 Problems 4-6, find f ° g, g ° f, ƒ° f, and g º g for each pair of functions. State the domain of each composite function. (b) (g°g) (-1) 3. f(x) = e*; g(x) = 3x – 2 4. f(x) = 2 – x; g(x) = 3x + 1 7 (e) Verify that the function below is one-to-one. (b) Find its inverse. { (1,2), (3, 5), (5, 8), (6, 10) } 8 The graph of a function f is given below. State why f is one-to-one. Then draw the graph of the inverse function f. 5. f(x) = V3x; g(x) = 1 + x + x? x + 1 1 6. f(x) = 8(x) = eview Exerdser 4 y = X (3, 3) -4 (2, 0) 4 X (0, -2) (-1,-3) n Problems 9 and 10, verify that the functions f and g are inverses of each other by showing that f(g(x)) = x and g(f(x)) = x. any values of x that need to be excluded from the domain of f and the domain of g. Give 40) 4 1 Ex + 2 X - 4 ;8(x) 9. f(x) = 5x – 10; g (x) 10. f(x) 1- x %3D
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