Question 4553
I don't see any y or b in this, so I guess we are just solving for x.


By the law of logarithms {{{log (b, x^n) = n *log(b, x)}}}

So, {{{log (10, 4^x) = -3 }}}
{{{x *log (10, 4) = -3}}}


Divide both sides by {{{log (10, 4) }}} 

{{{x = (-3)/ (log (10, 4)) }}}, or approximately -4.983


R^2 at SCC