GRE 8767 #20
Posted: Sat Oct 18, 2014 2:56 pm
Suppose that f(x+1)=f(x) for all real x. If f is a polynomial and f(5) = 11, the f(15/2) is:
a)-11
b) 0
c)11
d) 33/2
e)not uniquely determined by the information given
I thought answer e) but actually it's c), I don't figure out why?
a)-11
b) 0
c)11
d) 33/2
e)not uniquely determined by the information given
I thought answer e) but actually it's c), I don't figure out why?