Question 1043701
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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. 

     <A HREF=https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=one+to+one+function>https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=one+to+one+function</A>

     https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=one+to+one+function



2.  The natural domain of the given function  {{{W}}} = {{{3.24 * 10^(-3)*L^2}}}  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 {{{L^2}}}.



3.  The given function IS one-to-one on the restricted domain  {L | L >= 0} of positive real numbers, for example.
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