document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=941793>Question 941793</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student's grade in a course is the average of 4 test grades and a final exam that is worth twice as much as each test. Suppose a student has test grades of 91, 88, 79, and 92. Write an equation to model this situation where x is the student's grade on the final exam and y is the student's average for the course. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #574135 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=574135\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+%28+91+%2B+88+%2B+79+%2B+92+%2B+2x+%29+%2F+5+ ALIGN=MIDDLE  ALT=\"+y+=+%28+91+%2B+88+%2B+79+%2B+92+%2B+2x+%29+%2F+5+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+%28+350+%2B+2x+%29+%2F+5+ ALIGN=MIDDLE  ALT=\"+y+=+%28+350+%2B+2x+%29+%2F+5+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+70+%2B+%28+2%2F5%29%2Ax+ ALIGN=MIDDLE  ALT=\"+y+=+70+%2B+%28+2%2F5%29%2Ax+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Note that student can not do better than <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x=100+ ALIGN=MIDDLE  ALT=\"+x=100+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "on the final exam.<BR>\n" );
document.write( "The average can't be greater than <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+100+ ALIGN=MIDDLE  ALT=\"+y+=+100+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Here's the plot:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+400%2C+400%2C+-10%2C+140%2C+-10%2C+140%2C+70+%2B+%282%2F5%29%2Ax%29+ ALIGN=MIDDLE  ALT=\"+graph%28+400%2C+400%2C+-10%2C+140%2C+-10%2C+140%2C+70+%2B+%282%2F5%29%2Ax%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );