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The Gradient Function I am going to be investigating the function of the gradient. A function is a variable that depends on the value of other independent variables and the gradient is the steepness of a line or curve. I am going to try to work out a formula that will calculate the gradient of any given line or curve; this will be the gradient function. I already know of some methods that can be used to calculate the gradient, these are: 1. The formula: increase in y increase in x This formula represents the vertical value on the graph divided by the horizontal value. It can also be written as: dy dx This notation demonstrates the rate of change at y with respect to x. Which means that as x changes so does y. When using this formula to work out the gradient at of a curve a tangent must first be drawn. 2....

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