document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=977706>Question 977706</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the inverse function. a.) f(x)=6-3x, b.)f(x)= 3 square root of x c.)f(x)= x^2+2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #599247 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=599247\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi there,<BR>\n" );
document.write( "Inverse function.<BR>\n" );
document.write( "This is how I do them:-<BR>\n" );
document.write( "a) f(x) = 6 - 3x<BR>\n" );
document.write( "y = 6 - 3x<BR>\n" );
document.write( "Change the x for the y and the y for the x:-<BR>\n" );
document.write( "x = 6 - 3y<BR>\n" );
document.write( "Subtract 6 from both sides<BR>\n" );
document.write( "x - 6 = 6 - 6 - 3y<BR>\n" );
document.write( "x - 6 = -3y<BR>\n" );
document.write( "Multiply both sides by -1<BR>\n" );
document.write( "6 - x = 3y<BR>\n" );
document.write( "Divide both sides by 3<BR>\n" );
document.write( "(6 - x)/3 = 3y/3<BR>\n" );
document.write( "y = (6 - x)/3<BR>\n" );
document.write( "...................<BR>\n" );
document.write( "b) f(x) = 3 square root x<BR>\n" );
document.write( "y = 3 square root x<BR>\n" );
document.write( "Change x for y and y for x<BR>\n" );
document.write( "x = 3 square root y<BR>\n" );
document.write( "Divide both sides by 3<BR>\n" );
document.write( "x/3 = 3 square root y/3<BR>\n" );
document.write( "x/3 = square root y<BR>\n" );
document.write( "Square both sides<BR>\n" );
document.write( "(x/3)^2 = (square root y)^2<BR>\n" );
document.write( "(x/3)^2 = y<BR>\n" );
document.write( "y = (x/3)^2<BR>\n" );
document.write( "....................<BR>\n" );
document.write( "c)f(x) = x^2 + 2<BR>\n" );
document.write( "y = x^2 + 2<BR>\n" );
document.write( "Change x for y and y for x<BR>\n" );
document.write( "x = y^2 + 2<BR>\n" );
document.write( "Take 2 off both sides<BR>\n" );
document.write( "x - 2 = y^2 + 2 - 2<BR>\n" );
document.write( "x - 2 = y^2<BR>\n" );
document.write( "Square root both sides<BR>\n" );
document.write( "Square root(x - 2) = Square root (y^2)<BR>\n" );
document.write( "Square root (x - 2) = y<BR>\n" );
document.write( "y = Square root (x - 2)<BR>\n" );
document.write( "...........................<BR>\n" );
document.write( "Hope this helps:-) </SPAN>\n" );
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