# Write an nth term rule for r=3 and a_1=4

Write an nth term rule for r=3 and ${a}_{1}=4$
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Leslie Braun
If ${a}_{1}$ is the first term of a geometric sequence and r is the common ratio, then the ${n}^{th}$ term ${a}_{n}$ is given by
${a}_{n}={a}_{1}×{r}^{n-1}=4×{3}^{n-1}$