# How to determine an exponential function

Let's start with x is equal to negative 4. Then we'll go to negative 3, negative 2, 0, 1, 2, 3, and 4. And let's figure out what our y-values are going to be for each of these x-values. Now, here, y is going to be 3 to the negative 4

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## Exponential Function

Brought to you by Sciencing If you have two points, (x 1, y 1) and (x 2, y 2 ), you can define the exponential function that passes through these points by substituting them in the equation y = ab x and solving for a and b. In general

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## What Is an Exponential Function?

The general form of the exponential function is f(x) = abx, where a is any nonzero number, b is a positive real number not equal to 1. If b > 1 ,the function grows at a rate If you need help, we're here for you 24/7.

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## How to Find an Exponential Equation With Two Points

By definition, an exponential function is where the independent variable (the x -value) is the exponent. To write the function in the form K ( x) = a b x, I first converted the

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If you're looking for the best of the best, you'll want to consult our top experts. With years of experience and proven results, they're the ones to trust.   ## Identifying Exponential Functions

Using the a and b found in the steps above, write the exponential function in the form f (x) = abx f ( x) = a b x. Example: Writing an Exponential Model When the Initial Value Is Known In 2006, 80 deer were introduced into a wildlife refuge.
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An exponential function is defined by the formula f (x) = a x, where the input variable x occurs as an exponent. The exponential curve depends on the