document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=249055>Question 249055</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Use the quadratic formula to determine the x-intercepts (if any) of the following function. Then evaluate the function for several values of x, and use the resulting points to graph the function. Show your work;  \r<BR>\n" );
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document.write( "f(x) = 7x2 - 2<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 #181463 by </B><A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><B>tutorcecilia(2152)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><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=tutorcecilia><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=181463\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%287x%5E2+-+2%29 ALIGN=MIDDLE  ALT=\"%287x%5E2+-+2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-0+%2B-+sqrt%28+0%5E2-4%2A7%2A-2+%29%29%2F%282%2A7%29+ ALIGN=MIDDLE  ALT=\"x+=+%28-0+%2B-+sqrt%28+0%5E2-4%2A7%2A-2+%29%29%2F%282%2A7%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-0+%2B-+sqrt%28+0%5E2-4%2A7%2A-2+%29%29%2F%282%2A7%29+ ALIGN=MIDDLE  ALT=\"x+=+%28-0+%2B-+sqrt%28+0%5E2-4%2A7%2A-2+%29%29%2F%282%2A7%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28%2B-sqrt%28%28+56+%29%29%2F%2814%29%29+ ALIGN=MIDDLE  ALT=\"x+=+%28%2B-sqrt%28%28+56+%29%29%2F%2814%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28%2B-sqrt2%28%28+14+%29%29%2F%2814%29+%29 ALIGN=MIDDLE  ALT=\"x+=+%28%2B-sqrt2%28%28+14+%29%29%2F%2814%29+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28%2B-sqrt%28%28+14+%29%29%2F%287%29%29+ ALIGN=MIDDLE  ALT=\"x+=+%28%2B-sqrt%28%28+14+%29%29%2F%287%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "x-intercepts:<BR>\n" );
document.write( "(<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2Bsqrt%28%28+14+%29%29%2F%287%29+ ALIGN=MIDDLE  ALT=\"%2Bsqrt%28%28+14+%29%29%2F%287%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, 0)<BR>\n" );
document.write( "(<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-sqrt%28%28+14+%29%29%2F%287%29+ ALIGN=MIDDLE  ALT=\"-sqrt%28%28+14+%29%29%2F%287%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, 0)<BR>\n" );
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document.write( "Some points:<BR>\n" );
document.write( "(1,5)<BR>\n" );
document.write( "(-1, 5)<BR>\n" );
document.write( "(4, 26)<BR>\n" );
document.write( "(-4, 26)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+7x%5E2+-+2%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+7x%5E2+-+2%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  </SPAN>\n" );
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