Question

Write a explicit rule for this sequence 4,7,10,13...

Answer 1

Explicit rule: $a_n=1+3n$

Answer 2

The explicit rule for the sequence 4,7,10,13 and so on is to add 3 to the previous number like so, 4 to 7 is +3, 7 to 10 is +3, and 10 to 13 is +3.