How do you evaluate log_2(1/8)? Precalculus Properties of Logarithmic Functions Logarithm-- Inverse of an Exponential Function 1 Answer Bdub Mar 3, 2016 log_2(1/8)=log_2(1/2^3)=log_2 2^-3=-3log_2 2=-3 Explanation: Use the property log_a a^x=x Answer link Related questions What is a logarithm? What are common mistakes students make with logarithms? How can a logarithmic equation be solved by graphing? How can I calculate a logarithm without a calculator? How can logarithms be used to solve exponential equations? How do logarithmic functions work? What is the logarithm of a negative number? What is the logarithm of zero? How do I find the logarithm log_(1/4) 1/64? How do I find the logarithm log_(2/3)(8/27)? See all questions in Logarithm-- Inverse of an Exponential Function Impact of this question 14164 views around the world You can reuse this answer Creative Commons License