If you need to graph a function (e.g., f(x)=x^2 ) rewrite it as an equation (e.g., y=x^2 ), since the general functional notation is not supported and an entry of f(x) will be interpreted as the variable f multiplied the variable x, in parentheses.

Simply replace the equation's left hand-side with a variable, for example 'y', that does not appear in the function definition.

So, in this case we will replace f(x) = 1/(x + 1) with y = 1/(x + 1):

Click here to see the graph.