Given f (9)= -2, which function can be used to generate
the sequence -8 , -7.25, -6.5, -5.75 .....?
1. f(n) = 8+0.75n
2. f(n) = -8 -0.75 (n-1)
3. f(n) = -8.75 + 0.75n
4. f(n) = 0.75 + 8(n-1)