### Home > APCALC > Chapter 5 > Lesson 5.1.3 > Problem5-31

5-31.

Graph $y=\left|x+1\right|+\left|x-2\right|$. For what value(s) of $x$ does $y$ achieve its minimum value? What characteristic of this function makes the answer to this question unusual? Homework Help ✎

It is possible for a function to have more than one global extrema. For example, any horizontal line has infinitely many minimums and maximums.