Question

Identify the 42nd term of an arithmetic sequence where a1 = -12 and a27 = 66. (2 points)

70
72
111
114

Answer 1

common difference = (a27 - a1) / 26

Answer 2

= (66 -(-12) / 26 = 78/26 = ?

Answer 3

if common difference = d
42nd term = -12 + 41d

Answer 4

- plug in the value for d you;ve just found

Answer 5

is the common difference a 3?