P 0 initial amount at time t 0. As the graph on the left shows at first exponential really decreases greatly but the rate of decay of becomes less and less until the becomes almost nothing. T is the time in discrete intervals and selected time units.
Analyzing the features of exponential graphs through the example of y5ˣ.
Y e -tt. Decay is when numbers decrease rapidly in an exponential fashion so for every x-value on a graph there is a smaller y-value. An exponential function with base b is defined by f x ab x where a 0 b 0 b 1 and x is any real number. Exponential growth is a process that increases quantity over time.