1. Let int r + 2 f(x) = int x – 2 where int r is the greatest integer function. (a) Find the domain of f. (b) Is ƒ injective? 2. If two functions f and g have inverses, then (f og)-1 = g-1 of-!. Let f(r) = 2x – 1 and g(x) = 3x + 4. Find the following: (a) f-'(x) (b) g-'(x) (c) (f o g)-'(x) (d) (go f)-'(x) (e) (f-1 og¬1) (x) 3. Does every odd function have an inverse? Give a counterexample. (A counterexample is an example that disproves a statement. For example, to disprove the statement “every whole number is even", a counterexample would be 3.) 4. Find a quadratic function of the form f(x) = ax² + bx + c that satisfies the following conditions. The graph of f passes through the point (1,5) and has vertex (-3, –2).

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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1. Let
int r + 2
f(x) =
int x – 2
where int r is the greatest integer function.
(a) Find the domain of f.
(b) Is ƒ injective?
2. If two functions f and g have inverses, then
(f og)-1 = g-1 of-!.
Let f(r) = 2x – 1 and g(x) = 3x + 4. Find the following:
(a) f-'(x)
(b) g-'(x)
(c) (f o g)-'(x)
(d) (go f)-'(x)
(e) (f-1 og¬1) (x)
3. Does every odd function have an inverse? Give a counterexample. (A counterexample
is an example that disproves a statement. For example, to disprove the statement “every
whole number is even", a counterexample would be 3.)
4. Find a quadratic function of the form f(x) = ax² + bx + c that satisfies the following
conditions.
The graph of f passes through the point (1,5) and has vertex (-3, –2).
Transcribed Image Text:1. Let int r + 2 f(x) = int x – 2 where int r is the greatest integer function. (a) Find the domain of f. (b) Is ƒ injective? 2. If two functions f and g have inverses, then (f og)-1 = g-1 of-!. Let f(r) = 2x – 1 and g(x) = 3x + 4. Find the following: (a) f-'(x) (b) g-'(x) (c) (f o g)-'(x) (d) (go f)-'(x) (e) (f-1 og¬1) (x) 3. Does every odd function have an inverse? Give a counterexample. (A counterexample is an example that disproves a statement. For example, to disprove the statement “every whole number is even", a counterexample would be 3.) 4. Find a quadratic function of the form f(x) = ax² + bx + c that satisfies the following conditions. The graph of f passes through the point (1,5) and has vertex (-3, –2).
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