<PRE><B>Question 212303</B>
Are you working with {{{y= (log (10,-x))/log (10,5) }}}?  This should work, with values of y being generated for NEGATIVE values of x.


Let me see how the algebra.com graph works:

{{{graph(300,300, -10,10,-10,10, log(10,-x)/(log(10,5)) ) }}}


R^2


Dr. Robert J. Rapalje, Retired
Seminole Community College</PRE>