Use the explicit formula an = 4 - 3n to find the seventh term of the arithmetic sequence.

Question

(1 point)
0 a7 = - 17
0 a7 = 1
• a7 = 7
0 a7 = -1

Answer 1

To find the seventh term of the arithmetic sequence given by the formula \( a_n = 4 - 3n \), we substitute \( n = 7 \) into the formula:

\[ a_7 = 4 - 3(7) \]

Calculating the expression:

\[ a_7 = 4 - 21 \] \[ a_7 = -17 \]

Thus, the seventh term \( a_7 \) is \(-17\).

So, the correct answer is:

a7 = -17