Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 11 - Section 11.1 - Parabolas - 11.1 Exercises: 8



Work Step by Step

Since the equation has x^{2}, we know that the parabola opens either up or down (not left or right). After we solve for y, we see that the x^{2} is positive, so therefore the graph opens up. Graph I is the only graph that has these qualities so therefore graph I is the correct answer.
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