Functions Modeling Change: A Preparation for Calculus, 5th Edition

Published by Wiley
ISBN 10: 1118583191
ISBN 13: 978-1-11858-319-7

Chapter 3 - Quadratic Functions - 3.2 The Vertex of a Parabola - Exercises and Problems for Section 3.2 - Exercises and Problems - Page 127: 1

Answer

Opens upward

Work Step by Step

This function is in the form $y=a(x-h)^2 +k$, where $(h,k)$ is the vertex. Thus, we see that the axis of symmetry is $x=1$, the vertex is $1,2$, and since the value of $a$ is positive, the graph opens upward.
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