document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=833320>Question 833320</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Check my questions and answers.\r<BR>\n" );
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document.write( "1. Does the equation represent a direct variation? If so, find the constant of variation.\r<BR>\n" );
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document.write( "5x = -3y\r<BR>\n" );
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document.write( "a. no<BR>\n" );
document.write( "b. yes; k = -5/3<BR>\n" );
document.write( "c. yes; k = 5/3<BR>\n" );
document.write( "d. yes; k = -3/5\r<BR>\n" );
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document.write( "2. Does the equation represent a direct variation? If so, find the constant of variation.\r<BR>\n" );
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document.write( "2x - 4y = 0\r<BR>\n" );
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document.write( "a. yes; k = -4<BR>\n" );
document.write( "b. no<BR>\n" );
document.write( "c. yes; k = 1/2<BR>\n" );
document.write( "d. yes; k = -1/2\r<BR>\n" );
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document.write( "I choose, D & B. which, I may be wrong. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #502463 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=502463\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Check my questions and answers.\r<BR>\n" );
document.write( "\n" );
document.write( "1. Does the equation represent a direct variation? If so, find the constant of variation.\r<BR>\n" );
document.write( "\n" );
document.write( "5x = -3y\r<BR>\n" );
document.write( "\n" );
document.write( "a. no<BR>\n" );
document.write( "b. yes; k = -5/3<BR>\n" );
document.write( "c. yes; k = 5/3<BR>\n" );
document.write( "d. yes; k = -3/5\r<BR>\n" );
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document.write( "2. Does the equation represent a direct variation? If so, find the constant of variation.\r<BR>\n" );
document.write( "\n" );
document.write( "2x - 4y = 0\r<BR>\n" );
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document.write( "a. yes; k = -4<BR>\n" );
document.write( "b. no<BR>\n" );
document.write( "c. yes; k = 1/2<BR>\n" );
document.write( "d. yes; k = -1/2\r<BR>\n" );
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document.write( "I choose, D & B. which, I may be wrong.<BR>\n" );
document.write( "Dun & Bradstreet?<BR>\n" );
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document.write( "For linear equations,<BR>\n" );
document.write( "Solve for one variable in terms of the other.<BR>\n" );
document.write( "If both are in the numerator, it's direct.<BR>\n" );
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document.write( "5x = -3y<BR>\n" );
document.write( "x = -3y/5<BR>\n" );
document.write( "Direct<BR>\n" );
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document.write( "2x - 4y = 0<BR>\n" );
document.write( "2x = 4y<BR>\n" );
document.write( "x = 2y<BR>\n" );
document.write( "Direct.<BR>\n" );
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document.write( "The constant depends on which variable you solve for.<BR>\n" );
document.write( "y is usually solved for if it's in x & y<BR>\n" );
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document.write( "x = -3y/5 --> k = -3/5<BR>\n" );
document.write( "y = -5x/3<BR>\n" );
document.write( "or y = (-5/3)x --> k = -5/3 (notice it's the reciprocal)<BR>\n" );
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document.write( "x = 2y --> k = 2<BR>\n" );
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document.write( "y = x/2<BR>\n" );
document.write( "or y = (1/2)x --> k = 1/2<BR>\n" );
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document.write( "It's a poorly posed problem (not a rarity).<BR>\n" );
document.write( "Should ask for y in terms of x, or vice versa, but didn't.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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