document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=948301>Question 948301</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Someone please could help me with it?\r<BR>\n" );
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document.write( "Find the inverse function of f(x)= -2x + 4. Tell me if that function is one on one function. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #578796 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=578796\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the inverse function of f(x)= -2x + 4.<BR>\n" );
document.write( "f(x) = y<BR>\n" );
document.write( "y = -2x + 4<BR>\n" );
document.write( "swap x and y solve for y<BR>\n" );
document.write( " -2y + 4 = x<BR>\n" );
document.write( " -2y = x - 4<BR>\n" );
document.write( "   y = x/-2 - 4/-2<BR>\n" );
document.write( "The inverse function:<BR>\n" );
document.write( "   <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28x%5E-1%29+=+-x%2F2+%2B+2 ALIGN=MIDDLE  ALT=\"f%28x%5E-1%29+=+-x%2F2+%2B+2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "It's a one to one function if a horizontal line passes thru the the graph at only one point<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-2x%2B4%2C+3%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-2x%2B4%2C+3%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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