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(x−1), 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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