if loga x, then which of the following does it equal?

Question

If y=loga x, then

  A. a=x^y

  B. y=a^x

  C. x=loga y

D. x=a^y

Which of the following above?  

Answer 1

A logarithm IS an exponent so for y = log_a(x), "y" is the exponent and since "a" is the base, the equivalent expression is:

a^y = x