Conventional treatments of functions start by building a rule of correspondence between x-values and y-values, typically by creating an equation of the form y = f (x). We call this a correspondence ...

Sketching the inverse of a logarithmic or an exponential function Extension Key fact Any function and its inverse are symmetrical about the line y = x.

Straight-line graphs of logarithmic and exponential functions Watch this video to learn about straight line graphs of logarithmic and exponential functions.