Question

Write an equation for the nth term of the arithmetic sequence. Then find a50. 8, 2, -4, - 10,

Answer 1

Answer: See below

Explanation:

Write an equation for nth term:

a + d(n - 1)

a = 8 (first term)
d = -6 (common difference)

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

Find a 50:

-6(50) + 14
= -300 + 14
= -286