-11, -9, -7, -5, -3 What is the next number? What is the 200th term in this sequence? | MathCelebrity Forum

-11, -9, -7, -5, -3 What is the next number? What is the 200th term in this sequence?

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-11, -9, -7, -5, -3 What is the next number? What is the 200th term in this sequence?

We see that Term 1 is -11, Term 2 is -9, so we do a point slope equation of (1,-11)(2,-9) to get the nth term of the formula

f(n) = 2n - 13

The next number is the 6th term:
f(6) = 2(6) - 13
f(6) = 12 - 13
f(6) = -1

The 200th term is:
f(200) = 2(200) - 13
f(200) = 400 - 13
f(200) = 387
 
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