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1 min read•june 7, 2020

Anusha Tekumulla

In AP Calculus, limits can be used to represent a constant change in functions. The rate of change of a function is equal to the formulas **ΔY/ΔX **or **(Y2- Y1)/(X2-X1). **
While this formula may look scary, it’s actually just the slope formula. You may remember this as rise over run or the change in y over the change in x. 🔺
So in short, yes, change can occur at an instant. As you get further along in the course, you’ll learn about derivatives. Derivatives depend on limits and a derivative is the rate of change of a function at an instant, what we’ll call “**instantaneous rate of change**.” 🔄

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