I've been working through a study guide provided to me by my professor when I stumbled across a question I don't know how to solve. She didn't cover it in class, and when I went into tutorials to get help, the TAs didn't explain it well. I left more confused than I went in. Any help/explanations would be extremely appreciated.
Write the following sequence corresponding to the following set -1, 2, -3, 4, -5, 6... in set notation, as a plot, recursion equation, and discrete function.
All I got from the TA was that my answer should(?) have (-1)n in the set notation, as that would make the above sequence oscillate. Again, they were very unclear, so I don't know if I misheard the above statement. Thank you for reading!
Edit: I now understand how to write it as a recursion equation and a set, but I'm confused about how to graph it. Do I plug the values from the given set into the recursion equation and plot that? Also, what is the difference between the discrete function and the plot?