Use the explicit formula an=4−3n

to find the seventh term of the arithmetic sequence.(1 point)
Responses

a7=−1
a subscript 7 baseline equals negative 1

a7=1
a subscript 7 baseline equals 1

a7=7
a subscript 7 baseline equals 7

a7=−17

1 answer

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

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

Calculating this:

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

Therefore, the seventh term of the sequence is:

\[ a_7 = -17 \]

So the correct response is:

a7=−17