hi there , i found my self lost in part of Graphical functions , when we find a graph show a function , is this f(x) = ........ mean the shape of the lines take as coordinates in xy plane is intersect like that , or functioned like that ,i'm just didnt get the concept behind graphical function , so to make things more clear for my self and for you , this is simple example of ets site
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so what is the meaning here of y = f(x) , and here is the question about it
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