document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=92922>Question 92922</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the range for the function\r<BR>\n" );
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document.write( "y=-2x^2+4x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #67614 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=67614\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is the range for the function\r<BR>\n" );
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document.write( "y=-2x^2+4x<BR>\n" );
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document.write( "It's a parabola opening downward so you have to find the vertex<BR>\n" );
document.write( "or use x=-b/2a to find the x-coordinate of the vertex and then<BR>\n" );
document.write( "the corresponding y-value.<BR>\n" );
document.write( "x = -b/2a = -4/(2*-2) = 1<BR>\n" );
document.write( "f(1) = -2+4 = 2<BR>\n" );
document.write( "So the range is \" all Real Numbers less than of equal to 2\".<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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