document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=135021>Question 135021</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Draw the graph of each line using its y-intercept and its slope.\r<BR>\n" );
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document.write( "A bookstore manager plans to spend $60 on pens at 30 cents each and pencils at 10 cents each. the equation 0.10x + 0.30y =60 can be used to model this situation. \r<BR>\n" );
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document.write( "a) what do x and y represent?\r<BR>\n" );
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document.write( "b) Graph the equation\r<BR>\n" );
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document.write( "c) Write the equation in slope-intercept form. \r<BR>\n" );
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document.write( "d) what is the slope of the line?\r<BR>\n" );
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document.write( "e) what does the slope tell you? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #99128 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=99128\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A bookstore manager plans to spend $60 on pens at 30 cents each and pencils at 10 cents each. the equation 0.10x + 0.30y =60 can be used to model this situation. \r<BR>\n" );
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document.write( "a) what do x and y represent?<BR>\n" );
document.write( "x is number of pencils<BR>\n" );
document.write( "y is number of pens<BR>\n" );
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document.write( "b) Graph the equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+bookstore+manager+plans+to+spend+%2460+on+pens+at+30+cents+each+and+pencils+at+10+cents+each.+the+equation+0.10x+%2B+0.30y+=60+can+be+used+to+model+this+situation.+%0D%0A%0D%0Aa%29+what+do+x+and+y+represent%3F%0D%0Ax+is+number+of+pencils%0D%0Ay+is+number+of+pens%0D%0A-------------------------%0D%0Ab%29+Graph+the+equation%0D%0A%0D%0A ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >graph(400,300,-10,10,-10,10,(-1/3)x+200<BR>\n" );
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document.write( "c) Write the equation in slope-intercept form.<BR>\n" );
document.write( "y = (-1/3)+ 200<BR>\n" );
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document.write( "d) what is the slope of the line?<BR>\n" );
document.write( "m = -1/3<BR>\n" );
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document.write( "e) what does the slope tell you?<BR>\n" );
document.write( "As x increases one, y decreases 1/3<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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