document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=172691>Question 172691</A>: <I><SPAN STYLE=\"word-break: break-all;\"> use the given values to find an equation of the form f(x)= ax^2 + bx + c\r<BR>\n" );
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document.write( "1. f(0)= 5, f(1)=10, f(2)= 19 \r<BR>\n" );
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document.write( "Please explain step by step so I understand!\r<BR>\n" );
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document.write( "I would really appreciate any help!\r<BR>\n" );
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document.write( "Thank you very much </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #127541 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=127541\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x)= ax^2 + bx + c<BR>\n" );
document.write( "f(0)= 5 <BR>\n" );
document.write( "f(0)=a*0^2+b*0+c=5<BR>\n" );
document.write( "f(0)=0+0+c=5<BR>\n" );
document.write( "f(0)c=5 ans.<BR>\n" );
document.write( "f(1)=10 <BR>\n" );
document.write( "f(1)=a*1^2+b*1+5<BR>\n" );
document.write( "f(1)a+b+5=10 multiply this equation by -2 & add.<BR>\n" );
document.write( "f(2)= 19<BR>\n" );
document.write( "f(2)=a*2^2+b*2+5<BR>\n" );
document.write( "f(2)4a+2b+5=19 <BR>\n" );
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document.write( "-2a-2b-10=-20<BR>\n" );
document.write( "4a+2b+5=19 add.<BR>\n" );
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document.write( "2a-5=-1<BR>\n" );
document.write( "2a=-1+5<BR>\n" );
document.write( "2a=4<BR>\n" );
document.write( "a=4/2<BR>\n" );
document.write( "a=2 ans.<BR>\n" );
document.write( "2+b+5=10<BR>\n" );
document.write( "b=10-5-2<BR>\n" );
document.write( "b=3 ans.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "4*2+2*3+5=19<BR>\n" );
document.write( "8+6+5=19<BR>\n" );
document.write( "19=19 </SPAN>\n" );
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