document.write( "Question 1177279: find the largest interval d on which the formula f(x)=x^2 defines a one to one function solution \n" ); document.write( "

Algebra.Com's Answer #805790 by math_helper(2461) $\"\"$ $\"About$

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document.write( "A function will pass the vertical line test (i.e. a vertical line cuts the graph of the function at most once).\r
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document.write( "A one-to-one function will ALSO pass the horizontal line test, where any horizontal line drawn cuts the graph of the function at most once.\r
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document.write( "By eliminating the negative numbers from the domain, f(x)= now passes the horizontal line test. \n" );
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