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12.1.1.2 · Exponential and Logarithmic FunctionsThe Logarithm Function
12.1.1.2 · Exponential and Logarithmic Functions
The Logarithm Function
Turn the exponential's question around, reflect the curve in the line y = x, and draw the logarithm's graph.
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The question
If we turn an exponential function's question around, which function do we get, and what does its graph look like?
Think about it
There is a number in Defne's notebook: 1000 bacteria.
The colony doubles every hour: 1, 2, 4, 8, 16.
The notebook does not say how many hours passed.
At which hour does the colony reach 1000 bacteria?