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I've been teaching high school math for over 25 years. I write about my experiences here and also share activities that I have done with my classes that have been successful (and some that have been not so successful).

How to Write the Equation of an Exponential Function

Ever struggled with writing equations of exponential functions? 

Well, today's your lucky day – I am going to show you how to write the equation of an exponential function in this form:


In the examples, I am given the graph of the function, the equation of the horizontal asymptote, and the coordinates of two consecutive points - consecutive in that they are horizontally one unit away from each other (such as $x=1$ and $x=2$ or $x=-8$ and $x=-9$).

Check out part 1 of my how-to video here:

Part 2 is here:

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