document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1206747>Question 1206747</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Which statement about the function n(x) = 5x^2 - 20x + 12 is true?\r<BR>\n" );
document.write( "\n" );
document.write( "A. The domain of the function is x ≥ 2.\r<BR>\n" );
document.write( "\n" );
document.write( "B. The range of the function is n(x) ≥ -8\r<BR>\n" );
document.write( "\n" );
document.write( "C. The domain of the function is x ≥ 0.\r<BR>\n" );
document.write( "\n" );
document.write( "D. The range of the function is n(x) ≤ 12. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #844370 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13334)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=844370\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "The domain of any polynomial function is all real numbers, so answer choices A and C are not right.<br><BR>\n" );
document.write( "The graph is an upward opening parabola, so the range is all real numbers greater than or equal to some minimum value.  So between the remaining answer choices B and D, answer choice D can't be right.<br><BR>\n" );
document.write( "Since one of the answer choices has to be right, it must be B.<br><BR>\n" );
document.write( "We could do some work with the given equation to verify that the minimum value is -8; but with only four answer choices of which three can't be right, we shouldn't need to do that.<br><BR>\n" );
document.write( "ANSWER: B<br><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );