Introduction

Graphs of Logarithms

Graphing expnential funcitons and logarithmic functions is easy because they are both functions!

Remember, to test to see if a graph is a function, the vertical line test is used.

The example here is the graph of both the exponential function y = 4x and the logarithmic function y = log4 x, which written is exponential form is 4y = x.

graph showing y equals to 4 power of x and y equals to log4x and y equals to x

What do you notice about the two graphs?

Hint: Look at the line y = x.

graph showing y equals to 4 power of x and y equals to log4x and y equals to x