SOLUTION: The logarithmic function f(x) = -300 + 83 ln x models the number of visitors (in millions) to U.S. museums from 1960 to 2010, where x is the number of years since 1960. Is this fun

Algebra ->  Finance -> SOLUTION: The logarithmic function f(x) = -300 + 83 ln x models the number of visitors (in millions) to U.S. museums from 1960 to 2010, where x is the number of years since 1960. Is this fun      Log On


   

Question 978812: The logarithmic function f(x) = -300 + 83 ln x models the number of visitors (in millions) to U.S. museums from 1960 to 2010, where x is the number of years since 1960. Is this function increasing or decreasing?
a)increasing
b)decreasing
Found 2 solutions by Alan3354, jim_thompson5910:
Answer by Alan3354(69443) About Me  (Show Source):
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The logarithmic function f(x) = -300 + 83 ln x models the number of visitors (in millions) to U.S. museums from 1960 to 2010, where x is the number of years since 1960. Is this function increasing or decreasing?
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Try 2 values of x, see if f(x) increases or decreases as x increases.

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
The natural log function, ln(x), is an increasing function. So the overall function f(x) is also increasing since the ln(x) portion is positive.