Mathematics

Problem

For the function

y=\log_{\tfrac12}x

, which one of the following statements is correct? a) Domain

(-\infty,\infty)

and the function is increasing b) Domain

(0,\infty)

and the function is increasing c) Domain

(0,\infty)

and the function is decreasing d) Domain

(0,1)

and the function is decreasing