The exponential function y=bx is increasing if b>1 and decreasing if 0<b<1. Its domain is (−∞,∞) and its range is (0,∞). The logarithmic function y=logb(x) is the inverse of...The exponential function y=bx is increasing if b>1 and decreasing if 0<b<1. Its domain is (−∞,∞) and its range is (0,∞). The logarithmic function y=logb(x) is the inverse of y=bx. Its domain is (0,∞) and its range is (−∞,∞). The natural exponential function is y=ex and the natural logarithmic function is y=lnx=logex. Given an exponential function or logarithmic function in base a, we can make a change of base to convert this function to a
\(\begin{array} {l c} {\text{Suppose we want to evaluate} \log_{a}M} & {\log_{a}M} \\ {\text{Let} \:y =\log_{a}M. }&{y=\log_{a}M} \\ {\text{Rewrite the epression in exponential form. }}&{a^{y}=M } \\ ...Suppose we want to evaluatelogaMlogaMLety=logaM.y=logaMRewrite the epression in exponential form. ay=MTake the logbof each side.logbay=logbMUse the Power Property.ylogba=logbMSolve fory.y=logbMlogbaSubstiturey=logaM.logaM=logbMlogba
The exponential function y=bx is increasing if b>1 and decreasing if 0<b<1. Its domain is (−∞,∞) and its range is (0,∞). The logarithmic function y=logb(x) is the inverse of...The exponential function y=bx is increasing if b>1 and decreasing if 0<b<1. Its domain is (−∞,∞) and its range is (0,∞). The logarithmic function y=logb(x) is the inverse of y=bx. Its domain is (0,∞) and its range is (−∞,∞). The natural exponential function is y=ex and the natural logarithmic function is y=lnx=logex. Given an exponential function or logarithmic function in base a, we can make a change of base to convert this function to a