Use the table to answer the question.

Question

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

(1 point)
Responses

a=−15; b=−13
a equals negative 15 ; b equals negative 13

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

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

a=−6; b=−2
a equals negative 6 ; b equals negative 2
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Answer 1

Using the arithmetic sequence formula, we can find the value of a and b:

For x = 2, we substitute n = 1 into the formula:
a = -8 + (1 - 1) * 2
a = -8 + 0
a = -8

For x = 4, we substitute n = 2 into the formula:
b = -8 + (2 - 1) * 2
b = -8 + 2
b = -6

Therefore, the missing values in the table are:
a = -8; b = -6