document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=136991>Question 136991</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 4.	The line y=0.15x + 0.79\r<BR>\n" );
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document.write( "represents an estimate of the average cost of gasoline for each year. The line \r<BR>\n" );
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document.write( " 0.11x - y= -0.85\r<BR>\n" );
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document.write( "estimates the price of gasoline in January of each year (Bureau of Labor Statistics, 2006). <BR>\n" );
document.write( "a)	Do you expect the lines to be intersecting, parallel, or perpendicular? Explain your reasoning.\r<BR>\n" );
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document.write( "b)	Use the equations of the lines to determine if they are parallel. What did you find?\r<BR>\n" );
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document.write( "c)	Did your answer to part b confirm your expectation in part a?\r<BR>\n" );
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document.write( "Can someone please help me with these questions...<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 #100309 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=100309\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The line y=0.15x + 0.79 represents an estimate of the average cost of gasoline for each year.<BR>\n" );
document.write( "The line 0.11x - y= -0.85 estimates the price of gasoline in January of each year (Bureau of Labor Statistics, 2006). <BR>\n" );
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document.write( "y = 0.15x + 0.79<BR>\n" );
document.write( "y = 0.11x + 0.85<BR>\n" );
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document.write( "a) Do you expect the lines to be intersecting, parallel, or perpendicular? Explain your reasoning. <BR>\n" );
document.write( "The slopes are different so the lines intersect.<BR>\n" );
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document.write( "b) Use the equations of the lines to determine if they are parallel. What did you find? <BR>\n" );
document.write( "They are not; they intersect.<BR>\n" );
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document.write( "c) Did your answer to part b confirm your expectation in part a? <BR>\n" );
document.write( "Yes<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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