Question

Directions: Find the 8th term of the following:

1. f_0=5 ; f_1=9 : f_n=_________________________
2. f_0=9 ; f_1=13 : f_n=________________________
3. f_0=4 ; f_1=8 : f_n=________________________
4. f_0=2 ; f_1=6 : f_n=________________________
5. f_0=10 ; f_1=15 : f_n=________________________

Answer 1

#1. d = 4, so f_n = 5+4n

Do the rest in like wise.
For all of these,
f_n = f_0 + n(f_1 - f_0)