It’s so good to be back. I love summer, but unlike Calvin, I always enjoy returning to the school year. And I really like getting to know all of my students.

Just for fun, here’s a problem I came up with today. It combines some nice Algebra 2/Precal skills, and provides a nice exercise in analysis of functions. No calculator needed. Feel free to give answers in the comments below. In fact, feel free to suggest other similar problems.

Find the range of .