31,954 views
34 votes
34 votes
4 Write a recursive formula for the sequence below.
f(1) = 3, f(2) = 7, f(3)=11, f(4)=15

User Dexiang
by
2.7k points

1 Answer

25 votes
25 votes

Answer:

aₙ = aₙ₋₁ + 4

Explanation:

Finding the common difference (d) :

  • d = f(2) - f(1)
  • d = 7 - 3
  • d = 4

Hence, the recursive formula :

  • aₙ = aₙ₋₁ + 4
User Smchae
by
2.8k points