Hello. I am really stuck with this problem. Please help.
x and y are positive numbers. Which of the following implies
A:
B:
C:
D:
The answer should be D, but I don't know how.
Take the logarithm and use log laws:
is decreasing when when and increasing when (which you can calculate using calculus, but since this is precalc, I guess you would have to use a graph).