document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=89665>Question 89665</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Explain what it means for a function to be one to one.  Give an example. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #65154 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=65154\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For each x value there is one y; for each y value there is one x<BR>\n" );
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document.write( "Example: y = 3x+4 is one-to-one;its graph is a line<BR>\n" );
document.write( "Example: y = x^2 is NOT one-to-one; its graph is a parabola where<BR>\n" );
document.write( "certain y values are related to two different x values: (1,1) (-1,1)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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