Consider the function f(x)=log base 10 of x.
(a) What is the domain of f?
(b) Find f^-1
(c)If x is a real number between 1000 and 10,000, determine the interval in which f(x) will be found.
(d) Determine the interval in which x will be found if f(x) is negative.
(e) If f(x) is increased by one unit, x must have been increased by what factor?
(f) Find the ratio of x 1, to x 2 given that f(x 1)=3n and f(x 2)=n.

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You cannot take the log of a negative number, so \[x \ge1\]

Where would we be taking a log of a negative number? Letter b indicates an inverse function.

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