Question 634953
{{{a^x}}} is the inverse of {{{log(a,(x))}}}. So if you plug in x = 3 into the first expression, you get 10. If you plug 10 into the second expression, you'll get 3 back again.



So the point (10,3) lies on {{{y=log(a,(x))}}}



Notice how we did not even need to find the value of 'a'.