Use the formula for the general term (the nth term) of an arithmetic sequence to find the indicated term of the sequence with the given first term, a1, and common difference, d.

Question

Find a₁₅₀ when a₁ = -4, d = -3.

A. 446

B. -454

C. -451

D. 443

Answer 1

a1= -4, d= -3

find a150

an = a1 +d(n-1)

a150 = -4-3(149) =-4 -447 = -451

C. -451