Question

Which situation could be BEST represented by a constant function?

A. the temperature of a house with a thermostat setting of 74 degrees

B. the amount of water in a swimming pool as it is being drained

C. the speed of a passenger airplane during takeoff

D. the weight of a parked truck as furniture is being loaded

Answer 1

The weight of b, c, and d are all changing as time goes on, but the thermostat doesn’t, it is CONSTANT. So “A”