document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=57657>Question 57657</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine whether the following functions are inverse.\r<BR>\n" );
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document.write( "f(x) = (8x+9)/8\r<BR>\n" );
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document.write( "g(x) = (10x-7)/8\r<BR>\n" );
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document.write( "I am unable to solve.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #39374 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=39374\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Determine whether the following functions are inverse.\r<BR>\n" );
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document.write( "f(x) = (8x+9)/8\r<BR>\n" );
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document.write( "g(x) = (10x-7)/8\r<BR>\n" );
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document.write( "You can determine if the functions are inverses by taking the composite functions.  <BR>\n" );
document.write( "If (fog)(x)=x and (gof)(x)=x, then they are inverses of each other.<BR>\n" );
document.write( "(fog)(x)=f(g(x))=f((10x-7)/8)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28fog%29%28x%29=8%28%2810x-7%29%2F8%29%2B9 ALIGN=MIDDLE  ALT=\"%28fog%29%28x%29=8%28%2810x-7%29%2F8%29%2B9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2810x-7%29%2B9 ALIGN=MIDDLE  ALT=\"%2810x-7%29%2B9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10x%2B2 ALIGN=MIDDLE  ALT=\"10x%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "This is not = to x, therefore f(x) and g(x) are not inverse functions of each other.<BR>\n" );
document.write( "Happy Calculating!!!<BR>\n" );
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