The parabola y =- x2 + x + 1 opens a. upward b. downward c. to the right d. to the left

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter7: Conic Sections And Quadratic Systems
Section7.1: The Circle And The Parabola
Problem 8E: Determine whether the graph of the parabola opens upward, downward, to the left, or to the right....
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The parabola y =- x2 + x + 1 opens a. upward b. downward c. to the right d. to the left
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