Practice problem
Which of the following is an arithmetic sequence? Mark all that apply.
1,4,7,10,…1,4,7,10,\dots1,4,7,10,…
2,4,8,16,32,…2,4,8,16,32,\dots2,4,8,16,32,…
3,9,27,81,…3,9,27,81,\dots3,9,27,81,…
5,25,125,…5,25,125,\dots5,25,125,…
5,10,15,20,…5,10,15,20,\dots5,10,15,20,…
Type a concept, like “slope” or “photosynthesis”.
