document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=562208>Question 562208</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the range of y=sqrt(16-x^2) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #364489 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=364489\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is the range of y=sqrt(16-x^2)<BR>\n" );
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document.write( "Sqrt can never be negative.<BR>\n" );
document.write( "Solve 16-x^2 >= 0<BR>\n" );
document.write( "(x-4)(x+4) <= 0<BR>\n" );
document.write( "Draw a number line and plot x = -4 and x = 4<BR>\n" );
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document.write( "Test a value in each of the three intervals:<BR>\n" );
document.write( "(x-4)(x+4) < 0<BR>\n" );
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document.write( "If x = -10 ; -*- < 0 ; false<BR>\n" );
document.write( "If x = 0  ; -*+ < 0 ; true, so solutions in [-4 , 4]<BR>\n" );
document.write( "If x = +10 ; +*+ < 0 ; false\r<BR>\n" );
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document.write( "Range: -4 <= x <= 4<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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