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For Exercises 65–68, determine if the statement is true or false. If a statement is false, explain why. 65. If 5 is an upper bound for the real zeros of f(x), then 6 is also an upper bound. 66. If 5 is an upper bound for the real zeros of f(x), then 4 is also an upper bound. 67. If -3 is a lower bound for the real zeros of f(x), then -2 is also a lower bound. 68. If –3 is a lower bound for the real zeros of f(x), then -4 is also a lower bound.

For Exercises 65–68, determine if the statement is true or false. If a statement is false, explain why. 65. If 5 is an upper bound for the real zeros of f(x), then 6 is also an upper bound. 66. If 5 is an upper bound for the real zeros of f(x), then 4 is also an upper bound. 67. If -3 is a lower bound for the real zeros of f(x), then -2 is also a lower bound. 68. If –3 is a lower bound for the real zeros of f(x), then -4 is also a lower bound.

Calculus: Early Transcendentals
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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For Exercises 65–68, determine if the statement is true or false. If a statement is false, explain why. 65. If 5 is an upper bound for the real zeros of f(x), then 6 is also an upper bound. 66. If 5 is an upper bound for the real zeros of f(x), then 4 is also an upper bound. 67. If -3 is a lower bound for the real zeros of f(x), then -2 is also a lower bound. 68. If –3 is a lower bound for the real zeros of f(x), then -4 is also a lower bound.
Transcribed Image Text:For Exercises 65–68, determine if the statement is true or false. If a statement is false, explain why. 65. If 5 is an upper bound for the real zeros of f(x), then 6 is also an upper bound. 66. If 5 is an upper bound for the real zeros of f(x), then 4 is also an upper bound. 67. If -3 is a lower bound for the real zeros of f(x), then -2 is also a lower bound. 68. If –3 is a lower bound for the real zeros of f(x), then -4 is also a lower bound.
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