Week 2 - Moment of clarity

When we got our first quizzes back, I saw that I had goofed up on the interval notation for range in the first section. I talked to Jackson about why there should be brackets instead of parenthesis for the k values, and I then had my "moment of clarity". He explained how when you graph the function, those points will be hit, so we had to include the k value in the notation. To do this, the brackets must be used. (The brackets really mean "greater/less than or equal to". Without using them, we're saying that the k value is not included in the function, which is a false statement.)