document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=802467>Question 802467</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i dont understand how we find the domain without graphing our problem is Find the range of the function for the domain {–3, 1, 4.5}. <BR>\n" );
document.write( "y = –x + 1 but i dont understand </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #483889 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=483889\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> i dont understand how we find the domain without graphing our problem is Find the range of the function for the domain {–3, 1, 4.5}. <BR>\n" );
document.write( "y = –x + 1 but i dont understand<BR>\n" );
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document.write( "f(-3) = -(-3)+1 = 3 + 1 = 4<BR>\n" );
document.write( "f(1) = -1+1 = 0<BR>\n" );
document.write( "f(4.5) = -4.5 + 1 = -3.5<BR>\n" );
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document.write( "Range:: {4,0,-3.5}<BR>\n" );
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document.write( "Comment:<BR>\n" );
document.write( "Finding the domain.<BR>\n" );
document.write( "1st: Assume the domain is All Real Numbers.<BR>\n" );
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document.write( "2nd: Look for elements of the Rule which would restrict the domain, such as::<BR>\n" );
document.write( "a) even roots of a variable expression; it must be >= zero<BR>\n" );
document.write( "b) a variable expression in a denominator; it cannot equal zero<BR>\n" );
document.write( "c) log or ln of a variable expression; it must be >= zero<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "If the Rule you have does not have a or b or c,<BR>\n" );
document.write( "the domain is All Real Numbers.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
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