document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=687864>Question 687864</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if f(x) is aquadratic polynomial such that f(2)=-3 and f(-2)=21, then the coefficient of x in f(x) is<BR>\n" );
document.write( "A)4<BR>\n" );
document.write( "B)7<BR>\n" );
document.write( "C)-6<BR>\n" );
document.write( "D)-3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #425373 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=425373\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if f(x) is aquadratic polynomial such that f(2)=-3 and f(-2)=21, then the coefficient of x in f(x) is<BR>\n" );
document.write( "A)4<BR>\n" );
document.write( "B)7<BR>\n" );
document.write( "C)-6<BR>\n" );
document.write( "D)-3<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Form: ax^2 + bx + c = y<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Using (-2,21)::: 4a -2b + c = 21<BR>\n" );
document.write( "Using (2,-3):::: 4a +2b + c = -3<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Subtract and solve for \"b\":<BR>\n" );
document.write( "4b = -24<BR>\n" );
document.write( "b = -6<BR>\n" );
document.write( "===============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=================== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );