Appendix D - Graphing Techniques - Exercises - Page 446: 15

Appendix D - 15 (Answer) See Graph I

Appendix D - 15 (Solution) For $y = -\frac{1}{2} x^2$, When $x = 4, y = -8;$ $x = 2, y = -2;$ $x = 0, y = 0;$ $x = −2, y = -2;$ $x = −4, y = -8$ Domain = $(−\infty, \infty)$ Range = $(-\infty, 0]$ See Graph I