SOLUTION: The nth term of the sequence -2, 1, 4, 7, 10,... is given by the formula A) an = n - 3 B) an = 3n - 3 C) an = n - 5

Algebra ->  College  -> Linear Algebra -> SOLUTION: The nth term of the sequence -2, 1, 4, 7, 10,... is given by the formula A) an = n - 3 B) an = 3n - 3 C) an = n - 5       Log On


   



Question 1010998: The nth term of the sequence
-2, 1, 4, 7, 10,...
is given by the formula



A)
an = n - 3


B)
an = 3n - 3


C)
an = n - 5


D)
an = 3n - 5

Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
the general formula for the nth term in an arithmetic sequence is:
an = a0 + d(n-1) where a0 is the first term, n is nth, d is the difference
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for our problem a0 is -2, d is 3
an = -2 + 3(n-1)
an = -2 + 3n -3
an = -5 + 3n
the answer is option D