**TI83F* AppVariable file 03/21/07, 14:39Ì »GLA209»¹nav 26CE319875DD4F1B9DFDCB650E5220B1GLA209.GLA2091  common logarithm7common logarithm:ÖA logarithm that uses 10 as the base. exponential decay^exponential decay:ÖExponential decay occurs when a quantity decreases exponentially over time. exponential functionqexponential function:ÖA function that can be described by an equation of the form y = a^x, where a > 0 and a  1. exponential growth`exponential growth:ÖExponential growth occurs when a quantity increases exponentially over time.  logarithm•logarithm:ÖIn the function x = b^y, y is called the logarithm, base b, of x. Usually written asÖy = log(sub b) x and read "y equals log base b of x." logarithmic equationGlogarithmic equation:ÖAn equation that contains one or more logarithms. logarithmic functionˆlogarithmic function:ÖThe function Öy = log(sub b) x, where Öb > 0 and b  1, which is the inverse of the exponential function Öy = b^x. natural logarithm8natural logarithm:ÖLogarithms with base e, written ln x.  natural logarithmic functionfnatural logarithmic function:Öy = ln x, the inverse of the natural base exponential function Öy = e^x.Àš