document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1065379>Question 1065379</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the domain and range of -7x^2-8x+2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #680531 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=680531\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> -7x^2-8x+2<BR>\n" );
document.write( "Domain is all x.<BR>\n" );
document.write( "Range is minus infinity, because as x gets large, -x^2 gets large negative<BR>\n" );
document.write( "TO<BR>\n" );
document.write( "the vertex, which is -b/2a= - (-8)/-14=-4/7 for x<BR>\n" );
document.write( "square that 16/49<BR>\n" );
document.write( "multiply by -7<BR>\n" );
document.write( "-16/7<BR>\n" );
document.write( "add -8(-4/7)=32/7<BR>\n" );
document.write( "add 14/7<BR>\n" );
document.write( "30/7 is the y-value and the greatest value of the function.<BR>\n" );
document.write( "range is (-oo, 30/7)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C-7x%5E2-8x%2B2%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C-7x%5E2-8x%2B2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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