First of all exponential function has form y = a.b^x. ... If b>1, f(x) is an increasing function. If 0<b<1, f(x) is a decreasing function. If b≤0, f(x) is not defined.

Is an exponential function always increasing?

This graph is increasing, because the f(x) or y values increase as the x values increase. (Compare the values for x = 1 and x = 2.) ... This graph is decreasing, but all the function values are negative. The range for an exponential function is always positive values.

Does exponential increase and decrease?

Exponential growth is a process that increases quantity over time. ... If the constant of proportionality is negative, then the quantity decreases over time, and is said to be undergoing exponential decay instead.