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Find the First Term, the Common Difference, and Give a Recursive

Question 81

Multiple Choice

Find the first term, the common difference, and give a recursive formula for the arithmetic sequence.
-7th term is 45; 16th term is 117 A) a1=3,d=8,an=an18a _ { 1 } = - 3 , d = 8 , a _ { n } = a _ { n - 1 } - 8
B) a1=3,d=8,an=an1+8a _ { 1 } = - 3 , d = 8 , a _ { n } = a _ { n - 1 } + 8
C) a1=11,d=8,an=an18a _ { 1 } = - 11 , d = 8 , a _ { n } = a _ { n - 1 } - 8
D) a1=11,d=8,an=an1+8a _ { 1 } = - 11 , d = 8 , a _ { n } = a _ { n - 1 } + 8

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