Need help solving this problem Complete the recursively defined function to describe this sequence.
-34
-13
13
15
34
-21
f(1)
=
f(n) = f(n-1) +
for n = 2, 3, 4, ...

Which lines are parallel? justify your answer. lines p and q are parallel because same side interior angles are congruent. lines p and q are parallel because alternate exterior angles are congruent lines l and m are parallel because same side interior angles are supplementary lines l and m are parallel because alternate interior angles are supplementary.