Fill in the blank’s correctly.

Given the Recursive Formula:
a1 = 5
a4 = an-1 + 2

What is the common difference? Blank
What is the initial term? Blank
What term is this formula solving for? Blank
what should be in place of the n-1? Blank

Answer choices for blanks: 5,2,3,4

What is the common difference? Blank (2)

What is the initial term? Blank (5)
What term is this formula solving for? Blank (a4)
What should be in place of the n-1? Blank (3)