document.write( "Question 1122165: which of the following functions are one-to-one functions? F (X) = │X│
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Algebra.Com's Answer #738241 by rothauserc(4718) $\"\"$ $\"About$

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A 1 to 1 function is a function that preserves distinctness, that is, there is a single input for every output.
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\n" ); document.write( "f(x) = |x| where |x| is absolute value of x
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\n" ); document.write( "this function is not 1 to 1, for example f(3) and f(-3) have the same value
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