During motion, we know distance never decreases(ie. It is a monotonically increasing function of time), this implies
speed never decreases(It is also a monotonically increasing function)
speed is always positive
speed is never negative
speed can take any value
Which of the following function is a monotonically increasing function?
Constant functions are Monotonically increasing as well as monotonically decreasing functions
All the monotonically increasing functions are strictly increasing functions.