onsider the first five terms of an arithmetic sequence.
−34, −44, −54, −64, and −74.
Question 1
Which explicit formula defines the given arithmetic sequence? (General form: an = a1 + d(n − 1)
Responses
A an = 24 + 10na n = 24 + 10n
B an = −34 + 10na n = −34 + 10n
C an = −24 + 10na n = −24 + 10n
D an = −24 −10na n = −24 −10n
Question 2
How do you define the sequence using function notation? Assume the domain is all natural numbers.
Responses
A f(x) = 10x − 24f(x) = 10x − 24
B f(x) = −10x − 24f(x) = −10x − 24
C f(x) = −10x −34
D f(x) = 10x − 34
A. an = -34 + 10n
B. f(x) = 10x - 24