Graphic functions --- Introduction ---

Graphic functions is an exercise concerning the graphical recognition of functions of one real variable. The server will give you the graph of a function f(x), whose expression will be hidden. You will then be presented a certain number of other graphs, corresponding to modifications of f(x) such as f(x), 2f(x), f(x1), 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.
The exercise can be configured by the following parameters.
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