document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=41863>Question 41863</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let h be the function defined by h(x)=x2(2 means squared)-1, where the domain is the set of real numbers.<BR>\n" );
document.write( "a.  find h(2)<BR>\n" );
document.write( "b.  find h(-2)<BR>\n" );
document.write( "c. if h(t) = 15 what ar the possible values of t?<BR>\n" );
document.write( "d. find h(7.32).\r<BR>\n" );
document.write( "\n" );
document.write( "thanks, </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #27084 by </B><A HREF=/tutors/aboutme.mpl?userid=nik_consult><B>nik_consult(24)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nik_consult><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=27084\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> h(x)=x2(2 means squared)-1<BR>\n" );
document.write( "(a) h(2)= (2)^2-1<BR>\n" );
document.write( "        = 4-1<BR>\n" );
document.write( "        = 3<BR>\n" );
document.write( "(b)h(-2)= (-2)^2-1<BR>\n" );
document.write( "        = 4-1<BR>\n" );
document.write( "        = 3<BR>\n" );
document.write( "(c) h(t) = 15<BR>\n" );
document.write( "    x^2 -1 = 15<BR>\n" );
document.write( "    x^2 = 1+15<BR>\n" );
document.write( "        = 16<BR>\n" );
document.write( "      x = sqrt(16)<BR>\n" );
document.write( "        = + 4 @ -4<BR>\n" );
document.write( "(d) h(7.32)= (7.32)^2-1<BR>\n" );
document.write( "           = 53.5824 - 1<BR>\n" );
document.write( "           = 52.5824\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );