Which function is decreasing?

A:outdoor temperature as a function of time.
B:The Dow Jones industrial average as a function of time.
C:Air pressure in the earths atmosphere as a function of altitude.
D: World population since 1900 as a function of time.

Question

Which function is decreasing?

A:outdoor temperature as a function of time.
B:The Dow Jones industrial average as a function of time.
C:Air pressure in the earths atmosphere as a function of altitude.
D: World population since 1900 as a function of time.

parthkohli · Answer

The air pressure when you go up decreases, so C is definitely a decreasing function.

parthkohli · Answer

All of the others are increasing functions.

anonymous · Answer

thanks.