You can put this solution on YOUR website! .
Why the function W=(3.24 x 10^-3)L^2 is a one to one even if it is a quadratic function?
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1. Definition.
One-to-one is a function for which every element of the range of the function corresponds to exactly one element of the domain.
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2. The natural domain of the given function = is the set of all real numbers.
On this set the given function is NOT one-to-one, since every two numbers L and -L of the domain map into ONE number .
3. The given function IS one-to-one on the restricted domain {L | L >= 0} of positive real numbers, for example.