Chapter 7.1, Problem 91ES

Pregnancy. For Exercises 87–90, use the following graph of a woman’s “stress test.” This graph shows the size of a pregnant woman’s contractions as a function of time. Pregnancy. For Exercises 87–90, use the following graph of a woman’s “stress test.” This graph shows the size of a pregnant woman’s contractions as a function of time.

The greatest integer function $f\left(x\right)=〚x〛$ is defined as follows: $〚x〛$ is the greatest integer that is less than or equal to x. For example, if $x=3.74$ x=3.74, then $〚x〛=3$; and if $x=-0.98$, then $〚x〛=-1$. Graph the greatest integer function for $-5\le x\le 5$. (The notation $f\left(x\right)=\text{INT}\left(x\right)$ is used by many graphing calculators and computers.)