To graph a 3D surface, start the equation with "z=".

To graph a 2D curve, start the equation with "y=".

Use "y" instead of "f(x)".

Try "y = x".

Can only graph two curves at once.

Graphs starting with "y=" can only have x and n to the right of =.

Can not graph equations with ?'s.

Try using < in place of = and look at the boundary.

Now graphing two functions of x.

That text cannot be edited.

Click the Zoom Out button to see more of the graph.

To graph a function, put it in the form y=... or z=...

Can only graph functions of x, y, r, theta, and n.

Now graphing z as a function of x, y, r and theta.

Now graphing z as a function of r and theta.

Now graphing z as a function of x and y.

Now graphing y as a function of x.

To exit the fraction, press the right arrow.

To exit the exponent, press the right arrow.