Question

Use the table to answer the question.

This table shows x-values with corresponding variables for y-values.
x y
2 a
4 b
Use the arithmetic sequence formula an=−8+(n−1)⋅2
𝑎
𝑛
=
−
8
+
(
𝑛
−
1
)
⋅
2
to find the missing values in the table.

(1 point)
Responses

a=−10
𝑎
=
−
10
; b=−8
𝑏
=
−
8
a equals negative 10 ; b equals negative 8

a=−12
𝑎
=
−
12
; b=−10
𝑏
=
−
10
a equals negative 12 ; b equals negative 10

a=−15
𝑎
=
−
15
; b=−13
𝑏
=
−

Answer 1

a = a2 = −8 + (2−1)·2 = −8 + 2 = −6
b = a4 = −8 + (4−1)·2 = −8 + 6 = −2