Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
ChapterA: Appendix
SectionA.7: Quadratic Functions And Complex Numbers
Problem 1P
Related questions
Question
Complete the square and write the equation in standard form. Then give the center and radius of the
x^2 + 18x + 81 + y^2 - 8y + 16 = 81
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Why were the x and y terms broken down in the second line?
2(9)x and -2(4)y
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