How do you evaluate #log_2 (1/16)#? Precalculus Properties of Logarithmic Functions Natural Logs 1 Answer Eddie Jun 28, 2016 -4 Explanation: let #z = log_2 (1/16)# #\implies z = - log_2 (16)# #\implies -z = log_2 (16)# # = log_2 (2^4)# # = 4 log_2 (2)# # = 4*1 = 4# #z = -4# Answer link Related questions What is the natural log of e? What is the natural log of 2? How do I do natural logs on a TI-83? How do I find the natural log of a fraction? What is the natural log of 1? What is the natural log of infinity? Can I find the natural log of a negative number? How do I find a natural log without a calculator? How do I find the natural log of a given number by using a calculator? How do I do natural logs on a TI-84? See all questions in Natural Logs Impact of this question 6044 views around the world You can reuse this answer Creative Commons License