200 L23 §5.3 Logarithmic Functions The exponential function ( )xf xa=(0,1)aa>≠is a 1-1 function and, therefore, it has the inverse 1( )fx−. We denote the inverse logaxand read “logarithm to the base aof x”. Sketch the graphs of 2xy=and 2logyx=. Sketch the graphs of 12xy⎛⎞=⎜⎟⎝⎠and 12logyx=
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