What is depression ???

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depression is something like u feel too sad ,lonely and empty minded

Depression is like a feeling of sad and loss of interest, you know ... which stops you doing your normal activities.

“asleep in his bed” is personified.

. a function is a relation in which each input has only one output. in the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.