Graphic addition --- Introduction ---

Graphic addition is an exercise concerning the graphical recognition of the addition of functions of one real variable.

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.

The exercise can be configured by the following parameters.
The score is attributed only at the end of a session.
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