Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 9 - Quadratic Functions and Equations - 9-1 Quadratic Graphs and Their Properties - Practice and Problem-Solving Exercises - Page 538: 18

Answer

$$-\frac{1}{4}x^2, -\frac{1}{2}x^2, 5x^2$$

Work Step by Step

By coefficient rules, the bigger the coefficient the narrower the graph. So the answer is in order of coefficients from least to greatest which translates to widest to narrowest graphs. Negatives don't apply, it just matters how far from 0 the number is.
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