Consider the sequence -7, 3, 1, 5, 9,...What is f(5)?

1 Answer
Oct 31, 2016

#f(5)=9#

Explanation:

I've made several assumptions here:
[1]#color(white)("XXX")f# is a function which defines the sequence
[2]#color(white)("XXX")#the first element of the given sequence is #f(1)#

Under those conditions:
#color(white)("XXX")f(1)=-7#
#color(white)("XXX")f(2)=3#
#color(white)("XXX")f(3)=1#
#color(white)("XXX")f(4)=5#
#color(white)("XXX")f(5)=9#