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13. Write a rule for the nth term of the arithmetic sequence. -10, -4, 2, 8,

13. Write a rule for the nth term of the arithmetic sequence. -10, -4, 2, 8,
asked 199k views
3 votes
13. Write a rule for the nth term of the arithmetic sequence. -10, -4, 2, 8,

asked
User Medjine
by
8.9k points

1 Answer

3 votes

Answer:


a_n = 6n - 16

Explanation:


a_1 = -10


a_2 = -10 + 6


a_3 = -10 + 6 + 6 = -10 + 2 * 6


a_4 = -10 + 6 + 6 + 6 = -10 + 3 * 6


a_n = -10 + (n - 1)6


a_n = -10 + 6n - 6


a_n = 6n - 16

answered
User Jan Hudec
by
7.9k points
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