Question

Can Someone PleasePLEASE Help?? I'm lost.

Find the first six terms of the sequence. (5 points)

a1 = -2, an = 3 • an-1

Answer 1

`\bf a_1=-2\qquad a_n=3\cdot a_(n-1)\qquad \begin{cases} n=n^(th)\ term\\ a_1=\textit{first term}\\ r=\textit{common ratio}\\ -------\\ n=6\\ a_1=-2\\ r=3 \end{cases} \\\\\\ a_n=a_1\cdot r^(n-1)\implies a_6=(-2)(3^(6-1))`

notice, the notation is just saying, that 3 * "the previous term, or n-1" is the next term, thus the common ratio, or multiplier is 3