Question

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

a7=−4
a subscript 7 baseline equals negative 4

a7=−1
a subscript 7 baseline equals negative 1

a7=−5
a subscript 7 baseline equals negative 5

a7=−9

Answer 1

a_7 = -5

Reason: common difference = -4, so a_6 = 3 + (−4) = −1 and a_7 = −1 + (−4) = −5.