Question

What are the explicit equation and domain for an arithmetic sequence with a first term of 5 and a second term of 3?

Answer 1

an = 5 − 3(n − 1); all integers where n ≥ 1
an = 5 − 3(n − 1); all integers where n ≥ 0
an = 5 − 2(n − 1); all integers where n ≥ 0
an = 5 − 2(n − 1); all integers where n ≥ 1

Answer 2

general form = a + d(n - 1)
where a = first term and d = common difference
d = second term - first

Answer 3

n>= 1

Answer 4

is it C?

Answer 5

@welshfella

Answer 6

sorry - i keep on get disconnected

Answer 7

no because n >= 1

Answer 8

did you mean\[n \ge1\]

Answer 9

yes

Answer 10

oh ok

Answer 11

thank you

Answer 12

yw