Algebra 3: Polynomial Unit Review I. A.APR.3 Learning Target: I can sketch a graph of the polynomial using the zeroes and end behavior 1. Given the function f ( x) x3 x 2 10 x 8 Name ______________________________________ Period _______________ Date _________________ 2. Given the function f ( x) x3 6 x 2 x 30 . Part A: Determine if (x – 2) is a factor. Show all work. Part A: Identify all the possible rational roots. Circle one: Answer: _________________________ YES NO Part B: If so, list all factors. If not, explain why not. Part B: Identify the zeroes of the function. Answer: _________________________ Part C: Describe the end behavior of the function. __________________________________________ __________________________________________ __________________________________________ Part D: Use this information to sketch the graph of the function. Algebra 3: Polynomials Review 6/4/14 Answer: __________________________________ __________________________________________ __________________________________________ _________________________________________ PUHSD Algebra 3-4 Curriculum Team II. A.REI.11 Learning Target: I can identify the points of intersection of two or more functions. 5. Explain why a table may not be the best way to find the points of intersection of two functions. 3. Use a graphing calculator to find the approximate intersection(s) to the nearest tenth. _____________________________________________ _____________________________________________ f ( x) x 2 2 x 8 _____________________________________________ g ( x) x 3 3 x 2 8 _____________________________________________ III. F.IF.4 Learning Target: I can interpret key features of graphs and tables in terms of the quantities, and sketch graphs showing key features given a verbal description of the relationship 6. Use the graph to Identify the roots and their multiplicities to fill in the table below Answer: _________________________ 4. Create a table with x, f(x) and g(x) and then identify the points of intersection of the functions. f ( x) x 4 2 x 2 4 g ( x) x 5 x 3 4 Even Multiplicity Roots x f(x) Odd Multiplicity Roots g(x) -3 -2 -1 0 1 2 3 Answer:__________________________________ _________________________________________ Algebra 3: Polynomials Assessment 6/4/14 PUHSD Algebra 3-4 Curriculum Team 7. The graph of a function is given below. IV. F.IF.9 Learning Target: I can compare properties of two functions each represented in a different way. 8. Examine the functions below and fill out the chart using <, >, or = to compare the two and answer the question. f ( x) 3x 2 2 x 3 g(x) Part A: State the intervals in which the function decreases. Part A: __________________________________________ f(x) Number of real x-intercepts x-value of largest x-intercept Minimum on the interval [0, 2] Rate of change over [-1, 1] __________________________________________ Part B: State the intervals in which the function increases. __________________________________________ g(x) Number of real x-intercepts x-value of largest x-intercept Minimum on the interval [0, 2] Rate of change over [-1, 1] Part B: How do the end behaviors of f ( x ) and g ( x ) compare as x approaches infinity? __________________________________________ __________________________________________ __________________________________________ __________________________________________ Part C: Which equation has a greater maximum? How do you know? __________________________________________ __________________________________________ __________________________________________ Algebra 3: Polynomials Assessment 6/4/14 PUHSD Algebra 3-4 Curriculum Team 9. The function y (2 x 5)3 is transformed to: Part A: y (2 x 5)3 8 Describe in words how the function has been transformed: __________________________________________ __________________________________________ __________________________________________ Part B: y (2 x 5)3 Describe in words how the function has been transformed. __________________________________________ __________________________________________ __________________________________________ Algebra 3: Polynomials Assessment 6/4/14 PUHSD Algebra 3-4 Curriculum Team