document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=910369>Question 910369</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need to know the Vertex, Axis of Symmetry, roots, domain, and the range for the following problem.<BR>\n" );
document.write( "Y=x^2-4<BR>\n" );
document.write( "I also need to know if it opens up or down and if you could graph it that would be greatly appreciated. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #552434 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=552434\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> recommend the free graphing software download:<BR>\n" );
document.write( "https://www.padowan.dk/download/<BR>\n" );
document.write( "Algebraically<BR>\n" );
document.write( "y = x^2 - 4 = = (x+2)(x-2) roots: -2,2<BR>\n" );
document.write( "........<BR>\n" );
document.write( "the vertex form of a Parabola opening up(a>0) or down(a<0), <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=a%28x-h%29%5E2+%2Bk ALIGN=MIDDLE  ALT=\"y=a%28x-h%29%5E2+%2Bk\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "where(h,k) is the vertex  and  x = h  is the Line of Symmetry<BR>\n" );
document.write( ".......<BR>\n" );
document.write( "y = x^2 - 4     V(0,-4), Axis of Symmetry x = 0, a= 1> 0 Opens Upward<BR>\n" );
document.write( "domain:  All real Numbers<BR>\n" );
document.write( "range [-4, &#8734; )<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28300%2C300%2C+++-6%2C+6%2C+-6%2C+6%2C+grid%281%29%2C+blue%28line%280%2C6%2C0%2C-6%29%29+%2C%0D%0Acircle%28-2%2C0%2C0.2%29%2C%0D%0Acircle%282%2C+0%2C0.2%29%2C%0D%0Acircle%280%2C-4%2C0.2%29%2C%0D%0A%0D%0Agraph%28+300%2C+300%2C+-6%2C+6%2C+-6%2C+6%2C0%2C+x%5E2-4%29+%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );