Using Rolle's Theorem is it possible for the function f(x)= (9x^7)+ (7x) -10 to have two or more real roots?  Suppose that f(x) has at least two real roots. Choose two of these roots and call the smaller one a and the larger one b. By applying Rolle's theorem to f(x) on the interval [a,b], there exists at least one number c in the interval (a,b) so that f '(c)= _________ .    The values of the derivative f '(x)=__________ are always positive and therefore it is impossible for f(x) to have two or more real roots.

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter4: Polynomial And Rational Functions
Section4.5: Zeros Of Polynomial Functions
Problem 81E
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Using Rolle's Theorem is it possible for the function f(x)= (9x^7)+ (7x) -10 to have two or more real roots? 

Suppose that f(x) has at least two real roots. Choose two of these roots and call the smaller one a and the larger one b. By applying Rolle's theorem to f(x) on the interval [a,b], there exists at least one number c in the interval (a,b) so that f '(c)= _________ . 

 

The values of the derivative f '(x)=__________ are always positive and therefore it is impossible for f(x) to have two or more real roots.  

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