document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=701687>Question 701687</A>: <I><SPAN STYLE=\"word-break: break-all;\"> So on my test, I missed one question. How did I get this question wrong?\r<BR>\n" );
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document.write( "If y varies directly as x, and y=30 when x=4, find y when x=-10.<BR>\n" );
document.write( "(Algebra III; Variation)<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #432527 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=432527\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \"y varies directly as x,\" means y = kx for some number k\r<BR>\n" );
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document.write( "y = kx\r<BR>\n" );
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document.write( "30 = k*4 ... plug in x = 4 and y = 30\r<BR>\n" );
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document.write( "30/4 = k\r<BR>\n" );
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document.write( "15/2 = k\r<BR>\n" );
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document.write( "k = 15/2\r<BR>\n" );
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document.write( "y = kx\r<BR>\n" );
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document.write( "y = (15/2)x\r<BR>\n" );
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document.write( "y = (15/2)*(-10)\r<BR>\n" );
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document.write( "y = -150/2\r<BR>\n" );
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document.write( "y = -75\r<BR>\n" );
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document.write( "So y = <font color=\"red\">-75</font> when x = -10 </SPAN>\n" );
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