Math

QuestionFind the formula for the nthn^{\text{th}} term ana_{n} of the sequence: 6, 16, 26, ...

Studdy Solution

STEP 1

Assumptions1. The sequence is arithmetic, meaning the difference between consecutive terms is constant. . The first term of the sequence is6.
3. The common difference, d, is the difference between the second term and the first term.

STEP 2

First, we need to find the common difference, d. We can do this by subtracting the first term from the second term.
d=a2a1d = a2 - a1

STEP 3

Now, plug in the given values for the first and second terms to calculate the common difference.
d=166d =16 -6

STEP 4

Calculate the common difference.
d=166=10d =16 -6 =10

STEP 5

Now that we have the common difference, we can write the general formula for an arithmetic sequence.
an=a1+(n1)da_n = a1 + (n -1) \cdot d

STEP 6

Plug in the values for the first term and the common difference into the formula.
an=6+(n1)10a_n =6 + (n -1) \cdot10

STEP 7

implify the formula.
an=6+10n10a_n =6 +10n -10

STEP 8

Combine like terms.
an=10n4a_n =10n -4The explicit formula for the nth term of the sequence is an=10n4a_n =10n -4.

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