The server will give you the graph of two functions *f* and *g*,
whose expressions will be hidden. You will then be presented a certain number
of other graphs, corresponding to functions such as *f*(*x*)+*g*(*x*), *f*(-*x*)-*g*(*x*),
*f*(*x*)+*g*(-*x*), etc (see the menu below). And you should locate the one
which corresponds to one which will be precised in a question.To give the reply,
you can simply click on the graph which you believe to be the good one.

Please take note that WIMS pages are interactively generated; they are not ordinary HTML files. They must be used interactively ONLINE. It is useless for you to gather them through a robot program.

- Description: recognize the graph of f(x)+g(x) from that of f and g, etc. interactive exercises, online calculators and plotters, mathematical recreation and games
- Keywords: interactive mathematics, interactive math, server side interactivity, analysis, graphing, functions