Q. Explain logarithmic functions . The function y = loge x constant number ,where a is a positive constant number not equal to 1 is called a logarithmic function . this is an inverse function relatively to an exponential function its graph can be obtained by rotating a graph of an exponential function around of a bisector of the 1st coordinate angle Share with your friends Share 0 Aarushi Mishra answered this Dear studentThe text mentions definition of logarithm functionLogarithm function is defined asf:ℝ+→ℝfx=logax, where a>0 and a≠1This means when you write logax then x>0 as the domain if the function is positive real numbers; also a>0 and a≠1.Definition: logax means the power to which 'a' must be raised to be equal to 'x'i.ey=logax ⇔ x=ayIt is an invertible function. Graph inverse of any function fx is actually the image of graph of fx in the line y=x .In the text they have written the same thing in a complex form as "This is an inverse function relatively to an exponential function its graph can be obtained by rotating a graph of an exponential function around of a bisector of the 1st coordinate angle"The inverse of a logarithm function is exponential function as you can seey=logax ⇔ x=ayx=ay is similar to the inverse of logax only you need to interchange x and y so as to get a function in x, y=f-1x=ax 0 View Full Answer