Given the explicit formula, find the 5th term
an = -3 + (n - 1)5
A. 5
B. 22
C. 15
D. 17
To find the 5th term, we substitute n = 5 into the formula:
a5 = -3 + (5 - 1)5
a5 = -3 + 4 * 5
a5 = -3 + 20
a5 = 17
Therefore, the 5th term is 17.
The correct option is D. 17.