Write the explicit formula for the arithmetic sequence. 2, -2, -6, -10, -14, a) an = 5 - 3n b) an = 6 - 4n c) an = 8 - 6n d) an = 10 - 8n

B

Step-by-step explanation:

The n th term (explicit formula) of an arithmetic sequence is

= a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 2 and d = - 2 - 2 = - 4, thus

= 2 - 4(n - 1) = 2 - 4n + 4 = 6 - 4n → B

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3