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OpenStudy (anonymous):
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)
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OpenStudy (cwrw238):
common difference is a15 - a14
OpenStudy (cwrw238):
nth term = a1 +( n-1)d
OpenStudy (cwrw238):
common difference d = 9 - (-33)
OpenStudy (cwrw238):
can you calculate d = 9-(-33)?
OpenStudy (anonymous):
42?
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OpenStudy (anonymous):
so the answer would be an = -579 + 42(n - 1) ??? is this right?
OpenStudy (cwrw238):
yes
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