Name Block _____ Algebra 2 Review page 1 REVIEW for FINAL Directions: You are not allowed to use a calculator on this review. 1. Simplify a. log3 ( 271 ) b. ( 94 ) d. x 2 x 2 y3 x -2 1 c. 8 4 3 e. f(–2) if f(x) = x3 – x2 -2 Algebra 2 Review 2. Suppose f(x) = –2x + 9 and g(x) = 3x 2 +1 Find a function formula for the composition function f(g(x)). Show your work. 3. Solve these equations. Go as far as possible without a calculator. a. 5x 2 - 2 = 9x b. log 8 ( x - 8) - 13 = 0 c. x 2 + 3x -1 = 0 page 2 Algebra 2 Cumulative Test page 3 4. Sketch the graph of this function: f(x) = –1 (x + 1)2 (x – 3) Your graph must have accurately drawn xand y-intercepts and the correct overall shape. 5. For the graph shown below write a function formula. Show any needed work. Circle your answers. 6. Convert this quadratic function to vertex form. f(x) = 3x 2 -12x + 23 Algebra 2 Review page 4 7. A football is kicked into the air. After x seconds, the football’s height in feet is given by f(x) = –16(x – 2)2 + 64. a. What is the greatest height reached by the football? b. Solve the equation f(x) = 48. Explain the meaning of the answer in terms of the football. c. What are the x-intercepts of the graph of f(x) ? Show or explain how you get your answer. d. Sketch a graph of f(x) on the given axes. Label the x-intercept(s), y-intercept, and vertex with their (x, y) coordinates. e. What is the domain of f(x)? In other words, what x-values make sense as inputs in this problem situation? Algebra 2 Cumulative Test page 5 8. Let f(x) = – 2x3 + 6x + 4. The table at the right shows some of the function’s values. a. Using information from the table, identify one of the factors of f(x). b. Factor f(x) completely. Show your work. f(x) = __________________________________________ 9. For the graph shown below write a function formula. Show any needed work. f(x) = __________________________________________ x 1 2 3 f(x) 8 0 –32