For the sequence - 28,-16,-4,8, ... The expression that defines the nth term where a 1 = -28 is 12 - 28n 2 12 - 28 (n - 1) 3. - 28 + 12n - 28 + 12 (n - 1) Submit Answer

Question

Mathematics

Precious Francis

8 August, 07:06

For the sequence - 28,-16,-4,8, ... The expression that defines the nth term where a 1 = -28 is 12 - 28n 2 12 - 28 (n - 1) 3. - 28 + 12n - 28 + 12 (n - 1) Submit Answer

+4

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Sam · Answer 1

a₁ = - 28

aₙ = a₁ + 12 (n-1)

Step-by-step explanation:

a₁ = - 28

a₂ = - 28 + 12 (2 - 1) = - 16

a₃ = - 28 + 12 (3 - 1) = - 4

a₄ = - 28 + 12 (4 - 1) = 8

aₙ = a₁ + 12 (n-1)