GEORGIA MATHEMATICS 1 - Carnegie Learning

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Mid-Chapter Test PAGE 49. What is the domain and range of the quadratic function? Use a complete sentence inyour answer.The domain is all real numbers and the range is all real numbers less than or equal to –1.Determine whether the vertex of the given quadratic function is a maximum or aminimum. Use a complete sentence to explain your reasoning.10.y 15x 2 2x 29Sample Answer: The coefficient of the squared term is negative, so, the parabola opensdownward and the vertex is the maximum.11.y 8x 2 17x 543Sample Answer: The coefficient of the squared term is positive, so, the parabola opensupward and the vertex is the minimum.Complete each statement below.12. 144 12 13. 49 –714. Approximate 77 to the nearest tenth. Show all your work.64 < 77 < 8164 < 77 < 818 < 77 < 98.5 2 72.258.7 2 75.698.8 2 77.4477 ≈ 8.8© 2008 Carnegie Learning, Inc.236 Chapter 3 ■ Assessments Georgia Mathematics 1
End of Chapter TestName ___________________________________________________Date _____________________Read the scenario below. Use the scenario to answer Questions 1 through 7.The path of a diver in the water can be modeled by the function y 0.16x 2 3.2x, where x isthe horizontal distance in feet that the diver travels and y is the depth in feet of the diver.1. Complete that table of values that shows the depth as a function of the horizontal distance.LabelsUnitsHorizontal distancefeetDepthfeetExpressionsx 0.16x 2 3.2x051015200–12–16–12032. Write the equation of the line of symmetry. Show all your work and use a completesentence in your answer.x 3.22(0.16) 3.20.32 10The axis of symmetry is x = 10.© 2008 Carnegie Learning, Inc.3. Find the vertex of the graph of the function. Show all your work and use a completesentence in your answer.y = 0.16(10) 2 – 3.2(10)= 0.16(100) – 32= 16 – 32= –16The vertex is (10, –16).Georgia Mathematics 1 Chapter 3 ■ Assessments 237
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GEORGIA MATHEMATICS 1 - Carnegie Learning

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