A derivative helps us to know the changing relationship between two variables. Consider the independent variable 'x' and the dependent variable 'y'. The change in the value of the dependent variable with respect to the change in the value of the independent variable expression can be found using the derivative formula. Mathematically, the derivative formula is helpful to find the slope of a line, to find the slope of a curve, and to find the change in one measurement with respect to another measurement.
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