If 0 b 1 the function represents exponential decay. Half-life doubling time. Finding the rate or time in a word problem on continuous growth or decay.
Often to measure something involving an exponential decay we wait until the decay is over and only once everything is steady we take our measurement.
The variable b is the percent change in decimal form. Symbolically this process can be expressed by the following differential equation where N is the quantity and l lambda is a positive rate called the exponential decay constant. The coefficient a. If 15 remains then -0001201 t 15100e -0001201 t -0001201 t In15 In e Example.