document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=37466>Question 37466</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi will you please explain to me how to determine whether each relation is linear. Here is one problem:\r<BR>\n" );
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document.write( "  y=-4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #23183 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=23183\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The word \"linear\" means a straight line.  Normally any relation or function that is a first power in x is linear. Examples are y = 3x + 8, f(x) = 3/4 x + 2, y = x - 7, etc.<BR>\n" );
document.write( "This case, y = -4, is a special case called a constant function...a horizontal line, in fact, without x at all.  <BR>\n" );
document.write( "It can be written as y = 0x - 4 to show you that it is also a linear relation. </SPAN>\n" );
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