Final answer:
The 12th term of the sequence defined by b(n) = -4 - 2(n - 1) is calculated by substituting n with 12 in the adjusted formula b(n) = -2 - 2n, resulting in the 12th term being -26.
Step-by-step explanation:
To find the 12th term of the sequence defined by the function b(n) = -4 - 2(n - 1), we simply substitute n with 12.
First, we adjust the formula by distributing the -2 across the parentheses:
b(n) = -4 - 2n + 2
Now, combining like terms:
b(n) = -2 - 2n
Next, we substitute 12 for n to find b(12):
b(12) = -2 - 2(12) = -2 - 24 = -26
Therefore, the 12th term in the sequence is -26.