Friday, 5 August 2011

Chapter 1.5 Slope Of Secant & Average Rate of Change


. Average rate of change is the different in the dependent variables divide the change in the change in the independent variables.

. As the example:
          Speed = Distance/Time, where:
         
              Distance = depending variable
              Time = independent variable

. Slope of secant is the gradient of two points. It can be done by using the same formula to find gradient:
         
        
          Gradient general formula : 

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