GEORGIA MATHEMATICS 1 - Carnegie Learning

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Post-Test PAGE 26. Create a graph of the quadratic function in Question 5 on the grid below. First chooseyour bounds and intervals. Be sure to label your graph clearly.Answers may vary. A sample answer has been provided below.Variable quantity Lower bound Upper bound Intervalxy–9 9 1–4 14 1y13121131098761y = x9254321−8 −7 −6 −5 −4 −3 −2 −1 O 1 2 3 4 5 6 7 8−1−2−37. Identify the domain and range of the quadratic function that you graphed in Question 6.The domain is all real numbers, and the range is all positive real numbers.x© 2008 Carnegie Learning, Inc.230 Chapter 3 ■ Assessments Georgia Mathematics 1
Post-Test PAGE 3Name ___________________________________________________Date _____________________8. Write the equation of the line of symmetry for the parabola given by the equationy 2x 2 16x 10. Show all your work and use a complete sentence in your answer.x b2a 162(2) 1644The line of symmetry is x 4.Find the vertex of the graph of each quadratic function. Then tell whether they-coordinate of the vertex is a minimum or a maximum. Show all your workand use a complete sentence in your answer.9. y x 2 6x 810.y 3x 2 153x –62(1) 62 3y (3) 2 6(3) 8y 9 18 8y 1The vertex is (3, 1), and it is a maximum.x 02(3) 0y 3(0) 2 15y 0 15y 15The vertex is (0, –15), and it is a minimum.© 2008 Carnegie Learning, Inc.Complete each statement.11. 36 6 12. 121 –1113. Approximate 55 to the nearest tenth. Show all your work.49 < 55 < 6449 < 55 < 647 < 55 < 87.5 2 56.257.4 2 54.7655 ≈ 7.4Georgia Mathematics 1 Chapter 3 ■ Assessments 231
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Page 52 and 53: 1514131211yArchwayVertical distance
Page 54: 5. y x 2 3x 5x 32(1) 1.5;y ( 3

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