Analyzing graphs of exponential functions | High School Math | Khan Academy

Given the graph of an exponential function, Sal finds the formula of the function and a value that is outside the graph.

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High School Math on Khan Academy: Did you realize that the word "algebra" comes from Arabic (just like "algorithm" and "al jazeera" and "Aladdin")? And what is so great about algebra anyway? This tutorial doesn't explore algebra so much as it introduces the history and ideas that underpin it.

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