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Luda [366]
3 years ago
15

Write an explicit formula for the sequence -13, -6, 1, 8, ...

Mathematics
2 answers:
Alecsey [184]3 years ago
8 0

The answer is:

<h3>c) a_{n}=-13+7(n-1)</h3>
djyliett [7]3 years ago
7 0

Answer:

c) an = -13+7(n-1)

Step-by-step explanation:

We can use the formula for arithmetic sequences

an =a1+d(n-1)

where a1 is the first term in the sequence

d is the common difference

and n is the term number

a1 is -13

d is found by taking the second term and subtracting the first term

d = -6--13

  = -6+13

d=7

We are adding 7 each time

Substituting what we know,

an = -13 + 7(n-1)

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Answer:

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Step-by-step explanation:

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