Which best describes the relationship between the successive terms in the sequence shown? 9, –1, –11, –21, …
a. the common difference is –10.
b. the common difference is 10.
c. the common ratio is –9.
d. the common ratio is 9.2. a sequence is defined recursively using the formula f(n 1) = f(n) – 5 . which sequence could be generated using this formula?
a.1, –5, 25, –125,
b.2, 10, 50, 250,
c.3, –2, –7, –12,
d.4, 9, 14, 19,