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How to find the Gradient of a Curve  what is drawing a Tangent?
In this section I will explain to you how you can calculate the gradient of a curve. As you know the gradient is the steepness of the graph. For a linear function (a line) the steepness and therefore the gradient is constant. But curves do not have a constant gradient. Sometimes the gradient might be negative and sometime positive for the same curve! Study the following videos carefully in which I explain how to find the gradient of a curve. I will explain to you what a tangent is and how you can use it to calculate the gradient. These are typical questions on an IGCSE GCSE maths exam so if you want to pass your maths exam then please pay attention well!
