Write the Exponential Equation in Logarithmic Form $$e ^ { 9 x } = 10$$

Multiple Choice

Write the exponential equation in logarithmic form. $$e ^ { 9 x } = 10$$

A) $\ln 10 = - 9 x$
B) $\ln 9 = 10 x$
C) $\ln 10 = 9 x$
D) $\ln 10 = \frac { 1 } { 9 } x$
E) $\ln 10 = -\frac { 1 } { 9 } x$