document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=435221>Question 435221</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The line y=2.25x+1.79 represents an estimate of the average cost of gasoline each year.  The line 0.11x-y=-0.85 estimates the price of gasoline in January of each year.\r<BR>\n" );
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document.write( "Use the equations of the lines to determine if they are parallel, perpendicular or intersecting.  Justify your answer.<BR>\n" );
document.write( "Please help me I am completely lost. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #301260 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=301260\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  The line y=2.25x+1.79 represents an estimate of the average cost of gasoline each year. The line 0.11x-y=-0.85 estimates the price of gasoline in January of each year. <BR>\n" );
document.write( "Use the equations of the lines to determine if they are parallel, perpendicular or intersecting. Justify your answer.<BR>\n" );
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document.write( "Put both equations into slope-intercept form.<BR>\n" );
document.write( "y = 2.25x + 1.79<BR>\n" );
document.write( "y = 0.22x + 0.85<BR>\n" );
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document.write( "The slopes are different so the lines intersect.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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