Answer :
Answer:
-7 + 3(n - 1)
Step-by-step explanation:
(-4)-(-7) = -4 + 7 = 3
(-1)-(-4) = 3
2-(-1) = 3
then the common difference r = 3
and the first term is -7
since the nth term = first term + (n - 1)×r
then the nth term = -7 + (n - 1)×3
= -7 + 3(n - 1)