Question

Find an equation for the nth term of the arithmetic sequence.

a14 = -33, a15 = 9

an = -579 + 42(n + 1)

an = -579 + 42(n - 1)

an = -579 - 42(n + 1)

an = -579 - 42(n - 1)

Answer 1

common difference is a15 - a14

Answer 2

nth term = a1 +( n-1)d

Answer 3

common difference d = 9 - (-33)

Answer 4

can you calculate d = 9-(-33)?

Answer 5

42?

Answer 6

so the answer would be
an = -579 + 42(n - 1) ??? is this right?

Answer 7

yes