# Chapter 1 - Section 1.2 - Mathematical Models: A Catalog of Essential Functions. - 1.2 Exercises: 3

$a)$ $y=h(x)$ $b)$ $y=f(x)$ $c)$ $y=g(x)$

#### Work Step by Step

$a)$ $y=x^{2}$ is an even function so it is symmetrical about the y-axis. This limits the possible graphs to $g(x)$ and $h(x)$. It has a lower power than c) so it is less flat near the origin and less steep when $|x|\geq1$. Therefore it must be $y=h(x)$. $b)$ $y=x^{5}$ is an odd function so it is symmetrical about the origin. The only graph possible is $y=f(x)$. $c)$ $y=x^{8}$ is an even function so it is symmetrical about the y-axis. This limits the possible graphs to $g(x)$ and $h(x)$. It has a higher power than a) so it is more flat near the origin and more steep when $|x|\geq1$. Therefore it must be $y=g(x)$.

After 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.