Rumble, Grumble
f (x)
When David is hungry, he gets grouchy. When he is not
hungry, he stays in a good mood. In other words, David's
mood is a function of his hunger level
David's friend Karla usually has positive feelings toward
him. When he is grouchy, however, Karla gets irritated
with him. In other words, Karla's attitude toward David
is a function of his rood
Assume that David eats three meals a day, at normal times,
so that his hunger level is a function of the time of day.
Sketch a graph of Karla's feelings toward David as a
function of time over the course of two days.
hald