Can somebody help me in these questions? Will be marked as brainlest! :)

see explanation

Step-by-step explanation:

(2)

The explicit formula for an arithmetic sequence is

= a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 8 and d = a₂ - a₁ = 2 - 8 = - 6 , thus

= 8 - 6(n - 1) = 8 - 6n + 6 = 14 - 6n

(3)

Calculate the slope m using the slope formula

m =

with (x₁, y₁ ) = (8, - 4) and (x₂, y₂ ) = (- 6, - 3)

m = = = -

нιѕ яαтє ιѕ 1/4 σя .25 ριєѕ ρєя мιиυтє

нσρє ι ¢συℓ∂ нєℓρ уσυ.