Question

For what values of b will F(x) = log, xbe a decreasing function? O A. 0 < b< 1 O B. O> b>-1 b O c. bco O D. b>

Answer 1

Recall that a function is called decreasing if:

F(x)>F(y)

when y>x.

Let

$x

Then:

[tex]b^{log_bx}If 0[tex]log_bx>log_by,$

Answer:

[tex]0