Write a rule for the nth term of the sequence 15, 19, 23, 27

aₙ = 4n+11

Step-by-step explanation:

the sequence 15, 19, 23, 27

is AP with the first term 15 and

the common difference 19-15=23-19=27-23 = 4

aₙ = a₁ + (n-1) d

aₙ = 15 + (n-1) * 4 = 15+4n - 4 = 4n+11

aₙ = 4n+11