document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=490423>Question 490423</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine if<BR>\n" );
document.write( "f(x)=ln(5x+4), x>&#8722;4/5, has an inverse, and if it does, find this inverse. </SPAN>\n" );
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document.write( "f(x)=ln(5x+4), x>&#8722;4/5, has an inverse, and if it does, find this inverse<BR>\n" );
document.write( "**<BR>\n" );
document.write( "y=ln(5x+4)<BR>\n" );
document.write( "Change to exponential form: base(e) raised to log of number(y)=number(5x+4)<BR>\n" );
document.write( "e^y=5x+4<BR>\n" );
document.write( "interchange x and y, then solve for y, the inverse.<BR>\n" );
document.write( "e^x=5y+4<BR>\n" );
document.write( "5y=e^x-4<BR>\n" );
document.write( "y=(e^x-4)/5<BR>\n" );
document.write( "f(x) inverse=(e^x-4)/5 </SPAN>\n" );
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