Sketch a rough graph of the outdoor temperature as a function of time during a typical spring day.
Of course, this graph depends strongly on the geographical location!
October 1, 2020
so what is the domain
We want to draw a graph which represents the outdoor temperature on a typical spring day. So if we let time zero be midnight, chances are we're at our low temperature or somewhere in that region. And then over the course of time, we're going to hit a high temperature for the day. Maybe the high comes around six, so it's going to just keep going up, and then it's going to go back down again when we get to midnight. So maybe it's not going to be a perfect sign curve, but something like that.