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The slope of a non-linear curve is determined by calculating the derivative of the function that describes the curve.

In mathematics, the slope of a curve at a particular point is given by the derivative of the function that describes the curve. The derivative is a concept from calculus that measures how a function changes as its input changes. In other words, it gives the rate of change of the function at a particular point, which is the slope of the curve at that point.

For a non-linear curve, the slope is not constant but varies depending on the point on the curve. This is in contrast to a linear curve, where the slope is the same at all points. To find the slope of a non-linear curve at a specific point, you need to first have a mathematical function that describes the curve. This function could be a polynomial, an exponential, a logarithmic, or any other type of non-linear function.

Once you have the function, you can find its derivative. The derivative of a function can be found using various rules and techniques of differentiation, which are topics covered in calculus. The derivative of a function at a particular point gives the slope of the curve at that point.

For example, if you have a curve described by the function y = x^2, the derivative of this function is 2x. This means that the slope of the curve at any point x is 2x. So, at the point x = 3, for instance, the slope of the curve is 2*3 = 6.

In the context of IB Chemistry, understanding the concept of the slope of a curve can be useful in various areas, such as reaction kinetics, where the rate of a chemical reaction can be represented by a curve and the rate of change of the reaction (the reaction rate) can be found by determining the slope of the curve.

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