Graphical Analysis

[jbauman793]

I'm confused as how to graph f(x)=log2x, f(x)= square root of (a2-x2), f(x)= { 0, if x is rational
{ 1, if x is irrational

 

[mmm4444bot]

I'm confused as how to graph

f(x) = log(2x)

Are you familiar with the graph of log(x) ?

f(x) = square root of (a^2 - x^2)

This cannot be graphed because the constant a^2 is unknown.

f(x) = 0, if x is rational; 1, if x is irrational

This cannot be graphed because the function is infinitely discontinuous.