WAEC - Further Mathematics (2020 - No. 22)

Find the nth term of the linear sequence (A.P) (5y + 1), ( 2y + 1), (1- y),...

(8 + 3n)y + 1

8y + 3n + 1

(8 - 3n)y + 1

8y - 3n + 1

Tn = a + (n - 1)d

Tn = 5y + 1 (n - 1) -3y

Tn = 5y + 1 - 3ny + 3y

Tn = 8y - 3ny + 1

Tn = (8 - 3n) y + 1