#### Answer

(0.5;1.25) or (1/2;5/4)

#### Work Step by Step

vertex formula -b/2a
-(1)/2(-1) = 1/2
Substitute x = 1/2 into equation -x^2 + x + 1
Therefore y = 5/4

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

(0.5;1.25) or (1/2;5/4)

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