Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 8 - Section 8.5 - Shifting and Reflecting Graphs of Function - Practice - Page 612: 5

Answer

Please see the graph.

Work Step by Step

$h(x) = -(x-3)^2+2$ A graph of the form $a(x-h)^2+k$ has the vertex $(h,k)$. Thus, this graph has its vertex at $(3,2)$. Since the coefficient of the $x^2$ term is negative, we know the graph opens down. We pick $x=0$ and $x=5$ to find two other points for the graph. $x=0$ $h(x) = -(x-3)^2+2$ $h(x) = -(x-3)^2+2$ $h(0) = -(0-3)^2+2$ $h(0) = -(3^2)+2$ $h(0)= -9+2$ $h(0)=-7$ $x=5$ $h(x) = -(x-3)^2+2$ $h(5) = -(5-3)^2+2$ $h(5) = -(2^2)+2$ $h(5) = -4+2$ $h(5)=-2$ $(0, -7)$ and $(5,-2)$ are also on the graph, as well as the vertex of $(3,2)$.
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