RR+Steps



The most common way to approach related rates problems is the following: Errors in this procedure are often caused by plugging in the known values for the variables //before// (rather than after) finding the derivative with respect to time. Doing so will yield an incorrect result.
 * 1) Identify the known rates of change and the rate of change that is to be found.
 * 2) Construct an equation relating the quantities whose rates of change are known to the quantity whose rate of change is to be found.
 * 3) Differentiate both sides of the equation with respect to time (or other rate of change).
 * 4) Substitute the known rates of change and the known quantities into the equation.
 * 5) Solve for the wanted rate of change.