Answer
See below.
Work Step by Step
A function is increasing if for any $x_1\lt x_2$, $f(x_1)\leq f(x_2)$.
A function is decreasing if for any $x_1\lt x_2$, $f(x_1)\geq f(x_2)$.
A function is constant if for any $x_1\lt x_2$, $f(x_1)= f(x_2)$.
You need to log in to continue
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.