Find an expression for the nth term of the arithmetic sequence: 7, 12, 17, 22, …
Note
The common difference is 5, so the nth term has the form 5n + c. Since the first term occurs at n = 1, 5(1) + c = 7, giving c = 2. Thus the nth term is 5n + 2.
Find an expression for the nth term of the arithmetic sequence: 7, 12, 17, 22, …
The common difference is 5, so the nth term has the form 5n + c. Since the first term occurs at n = 1, 5(1) + c = 7, giving c = 2. Thus the nth term is 5n + 2.