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The rate of change is a measure of how one quantity changes over time. It is calculated by finding the difference in the quantity values divided by the difference in time. If the quantity is increasing, the rate of change is positive, while if it is decreasing, the rate of change is negative.
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The rate of change indicates the change in one variable per unit change in a second variable at (or around) that level for the second variable.
Rate of change is often used when speaking about momentum, and it can generally be expressed as a ratio between a change in one variable relative to a corresponding change in another. Graphically, the rate of change is represented by the slope of a line.
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The rate of change of a function is found by taking the derivative of the function. The equation for the derivative gives the rate of change at any point. This method is used frequently in calculus.
proportional.
proportional
derivative means rate of change of one variable w.r.t one variable while in differentition rate of change of one variable w.r.t more than one variables.
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