Find the first, fourth, and eighth terms of the sequence.
A(n) = −3 ∙ 2x − 1
To find the first term of the sequence, we substitute n = 1 into the formula for A(n).
A(1) = -3 * 2(1) - 1
A(1) = -3 * 2 - 1
A(1) = -6 - 1
A(1) = -7
Therefore, the first term of the sequence is -7.
To find the fourth term of the sequence, we substitute n = 4 into the formula for A(n).
A(4) = -3 * 2(4) - 1
A(4) = -3 * 8 - 1
A(4) = -24 - 1
A(4) = -25
Therefore, the fourth term of the sequence is -25.
To find the eighth term of the sequence, we substitute n = 8 into the formula for A(n).
A(8) = -3 * 2(8) - 1
A(8) = -3 * 16 - 1
A(8) = -48 - 1
A(8) = -49
Therefore, the eighth term of the sequence is -49.
The first, fourth, and eighth terms of the sequence are -7, -25, and -49, respectively.