Let f = xy = 2x + y + 1 There is at least one x ∈ R with no y ∈ R. Find all such problematic x ∈ R. Then restrict the domain of f to exclude those problematic x and prove that this makes f a function.
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Home » Mathematics » Let f = xy = 2x + y + 1 There is at least one x ∈ R with no y ∈ R. Find all such problematic x ∈ R. Then restrict the domain of f to exclude those problematic x and prove that this makes f a function.