document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1161110>Question 1161110</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Graph f(x)= {1-x,if x<0 2x-1, if x> with a line under it 0 <BR>\n" );
document.write( "Find f(3) and f(0) and f(-2) <BR>\n" );
document.write( "It’s all one question  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #784594 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=784594\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=black size=3><BR>\n" );
document.write( "The notation f(3) means f(x) when x = 3. We replace x with 3. Since x = 3, we need to look where this fits.\r<BR>\n" );
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document.write( "We have \"if x < 0\", but x = 3 is not smaller than zero. So we move onto the next piece which has <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+%3E=+0 ALIGN=MIDDLE  ALT=\"x+%3E=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >. This second piece says \"when <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%3E=0 ALIGN=MIDDLE  ALT=\"x%3E=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >, we have f(x) = 2x-1\"\r<BR>\n" );
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document.write( "So we plug x = 3 into this to get<BR>\n" );
document.write( "f(x) = 2x-1<BR>\n" );
document.write( "f(3) = 2(3)-1<BR>\n" );
document.write( "f(3) = 6-1<BR>\n" );
document.write( "<font color=red>f(3) = 5</font>\r<BR>\n" );
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document.write( "Similarly, x = 0 makes <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+%3E=+0 ALIGN=MIDDLE  ALT=\"x+%3E=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > true, so we use the second piece still\r<BR>\n" );
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document.write( "f(x) = 2x-1<BR>\n" );
document.write( "f(0) = 2(0)-1<BR>\n" );
document.write( "f(0) = 0-1<BR>\n" );
document.write( "<font color=red>f(0) = -1</font>\r<BR>\n" );
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document.write( "Finally, we want to find the value of f(x) when x = -2. This time we don't use the second piece. This is because x = -2 makes <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+%3C+0 ALIGN=MIDDLE  ALT=\"x+%3C+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > true.\r<BR>\n" );
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document.write( "So,<BR>\n" );
document.write( "f(x) = 1-x<BR>\n" );
document.write( "f(-2) = 1-(-2)<BR>\n" );
document.write( "f(-2) = 1+2<BR>\n" );
document.write( "<font color=red>f(-2) = 3</font><BR>\n" );
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