document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1159887>Question 1159887</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine the value of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2y-y%5Ez%29%2F%28y%5E2%29 ALIGN=MIDDLE  ALT=\"%28x%5E2y-y%5Ez%29%2F%28y%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > when:<BR>\n" );
document.write( "(1)<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=2 ALIGN=MIDDLE  ALT=\"y=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2)<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=2z ALIGN=MIDDLE  ALT=\"x=2z\"   DISABLED_style= \"max-width:90%; height:auto;\" >,<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=y%5E2 ALIGN=MIDDLE  ALT=\"z=y%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Answers:<BR>\n" );
document.write( "A) (1) on its own.<BR>\n" );
document.write( "B) (2) on your own.<BR>\n" );
document.write( "C) Both (1) and (2) together.<BR>\n" );
document.write( "D) Each on its own, (1) or (2).<BR>\n" );
document.write( "E) Additional information is required. \r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #783066 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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/cgi-bin/show-face.mpl?user=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=783066\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "From the apparent answer choices, I can GUESS what we are supposed to do with this problem....<br><BR>\n" );
document.write( "But it is not our responsibility to guess the meaning of your question; it is your responsibility to present the problem so it is clear.<br><BR>\n" );
document.write( "Re-post if you want us to help you with this....<br><BR>\n" );
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document.write( "I'm sorry you were given the problem in this form.  Presumably it came from an educator; you would think an educator would know how to speak/write English.<br><BR>\n" );
document.write( "The intent of the problem is to have you determine if a numerical value for the given expression can be found knowing...<BR>\n" );
document.write( "A) (1) only<BR>\n" );
document.write( "B) (2) only<BR>\n" );
document.write( "C) (1) and (2)<BR>\n" );
document.write( "D) (either) (1) or (2) alone<BR>\n" );
document.write( "E) none of the above<br><BR>\n" );
document.write( "Certainly (1) alone is not enough -- you still know nothing about x or z.  So answers A and D are both not right.<br><BR>\n" );
document.write( "With (2) alone, you can get x and z in terms of y to get an expression in y alone:<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=+y%5E2 ALIGN=MIDDLE  ALT=\"z+=+y%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+2z+=+2y%5E2 ALIGN=MIDDLE  ALT=\"x+=+2z+=+2y%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2y-y%5Ez%29%2F%28y%5E2%29+=+%28%28%282y%5E2%29%5E2%29y-y%5E%28y%5E2%29%29%2Fy%5E2 ALIGN=MIDDLE  ALT=\"%28x%5E2y-y%5Ez%29%2F%28y%5E2%29+=+%28%28%282y%5E2%29%5E2%29y-y%5E%28y%5E2%29%29%2Fy%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "But to get a value for the expression, you need a value for y.  So you need both (1) and (2) to find a value for the expression.<br><BR>\n" );
document.write( "So the answer is C.<br><BR>\n" );
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