First-order differential equations are equations that involve the first derivative of a function and the function itself. These equations can often be expressed in the form $$rac{dy}{dx} = f(x, y)$$, where $$y$$ is a function of the variable $$x$$, and $$f$$ is some function that defines the relationship between them. They are fundamental in understanding how quantities change over time and are crucial for modeling various real-world scenarios, such as population growth or decay processes.
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