Find the first four terms of the arithmetic sequence
where a1 = 2 and d = 5 (use formula)

first four terms are 2, 7, 12, 17

Step-by-step explanation:

use this formula:   = + (n - 1)· d

where 'n' equals the position in the sequence the term is in and 'd' is the common difference

if = 2 and d = 5 are given, plug those into formula

= 2

= 2 + (2 - 1)·5 = 2+5 = 7

= 2 + (3 - 1)·5 = 2+2(5) = 12

= 2+(4 - 1)·5 = 2+3(5) = 17

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