55. f(х) 3D 2x2 + 12х 59. f(х) 3D - х? + 10х - 4 56. f(х) - -2x? + 12х 60. f(х) 3D - 2x? + &r + 3 57. f(x) — 2x? + 12х - 3 61. f(х) %3D - Зх? + 12х + 1 58. f(x) 3 4x?- 8х + 3 62. f(х) %3D 4x? -4x

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter6: Fractions
Section6.1: Simplifying Fractions
Problem 31WE
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In Problems 55–62, determine, without graphing, whether the given quadratic function has a maximum value or a minimum value, and
then find the value.

55. f(х) 3D 2x2 + 12х
59. f(х) 3D - х? + 10х - 4
56. f(х) - -2x? + 12х
60. f(х) 3D - 2x? + &r + 3
57. f(x) — 2x? + 12х - 3
61. f(х) %3D - Зх? + 12х + 1
58. f(x) 3 4x?- 8х + 3
62. f(х) %3D 4x? -4x
Transcribed Image Text:55. f(х) 3D 2x2 + 12х 59. f(х) 3D - х? + 10х - 4 56. f(х) - -2x? + 12х 60. f(х) 3D - 2x? + &r + 3 57. f(x) — 2x? + 12х - 3 61. f(х) %3D - Зх? + 12х + 1 58. f(x) 3 4x?- 8х + 3 62. f(х) %3D 4x? -4x
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