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Chapter 5: Exercises with Solutions

Chapter 5: Exercises with Solutions

Chapter 5: Exercises with Solutions

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Section 5.2Vertex Form21.f(x) = x 2 + 2x − 6= x 2 + 2x + 1 − 1 − 6= ( x 2 + 2x + 1 ) − 1 − 6= (x + 1) 2 − 723.f(x) = x 2 − 9x + 3= x 2 − 9x + 81 4 − 814 + 3(= x 2 − 9x + 81 4=(x − 9 ) 2− 692 4)− 814 + 325.f(x) = −2x 2 − 9x − 3(= −2 x 2 + 9 2 x + 3 )2(= −2 x 2 + 9 2 x + 81((= −2 x 2 + 9 2 x + 8116( (= −2 x + 9 4(= −2 x + 9 ) 2+ 57 4 816 − 8116 + 3 )2)− 81) 2− 5716)16 + 3 2)Version: Fall 2007

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