A function f has the form f(x) = a+b ln x. If f(1) = 5 and f(e) = 7, find the values of a and b. Write the expression of f.

Algebra and Trigonometry (MindTap Course List)
4th Edition
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Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter4: Exponential And Logarithmic Functions
Section4.2: The Natural Exponential Function
Problem 1E
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A function f has the form f(x) = a+b ln x. If f(1) = 5 and f(e) = 7, find the values of a and b. Write the expression of f.

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