Question

Given the first five terms of the sequence 19, 15, 11, 7, 3 . . . , use subscript notation to describe a7 .(1 point)
Responses

a7=−9
a subscript 7 baseline equals negative 9

a7=−1
a subscript 7 baseline equals negative 1

a7=−5
a subscript 7 baseline equals negative 5

a7=−4
a subscript 7 baseline equals negative 4

Answer 1

a7 = -5

Reason: each term decreases by 4. From 3 (a5) → a6 = -1 → a7 = -5.