Which of the following functions has an initial value of -1/2 and a rate of change of 0?

Answer:
a starting value of -1/2 so its starts at -1/2 so lets see which ones start at that
not a
not b
yes c
this isn't a function
and no change so
not a
not b
yes c
yes d(not a function)
c
Hope This Helps!!!