Answer
(4.5;-12.25) or (9/2;-49/4)
Work Step by Step
vertex formula -b/2a
-(-9)/2(1) = 9/2
Substitute x = 9/2 into equation x^2 - 9x + 8
Therefore y = -49/4
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 11 - Section 11.6 - Further Graphing of Quadratic Functions - Exercise Set - Page 819: 8
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