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amishjeb
Was hoping someone could tell me or point me to a resource that could tell me about the image of a function. I've read and reread the definition in my book, but it's just not getting through at this time.
http://www.proofwiki.org/wiki/Definition:Image/Mapping/Mapping
If there is an input \(x\) such that \(f(x)=y\), then \(y\) is in the image of \(f\). The image is all possible \(y\) when putting in every possible \(x\).
The image is always a subset of the co-domain. It's sort of like the range, however "range" is an ambiguous term which can mean the image or the co-domain.
image is all the values a function can spit out
\(y = x^2\) take above function, can -2478457485 be in its image ?
Thanks for the help guys. Appreciate it.