Midterm Review (Algebra 2) Name_______________________________ Chapter 1& 2: Equations Inequalities, and Linear Functions 1. The graph of function f(x) is shown below find f(3) 2. Evaluate the expression f ( x) 2 x 2 5x 1 , when f(-2) = 3. Solve the inequality 2( x 4) 5 x 14 . Then graph its solution on a number line. 4. Solve the compound inequality. Then graph its solution on a number line. a. 2x 5 7 or 3x 9 12 2x b. 8 2x 6 15 5. A bag of lawn fertilizer claims that it will cover 5000 square feet of grass. Your yard is 27,500 square feet. If one bag of lawn fertilizer costs $18.96, then how much will it cost to fertilize your yard? 6. Solve the inequality 2 x 1 5 . Graph your results on a number line. 7. Graph. Identify the slope and y-intercept of the line whose equation is: 2 x 3 y 12 8. What is the equation of the line that passes through the point (2, 1) and has a slope of -2? 9. What is the vertex of the graph of y 12 x 2 4 10. The graph shows the temperature change between 5am and 8pm. Find the temperature change from 5 am to 11:00 am. Chapter 4—Quadratic Functions 11. What is the vertex of the graph of y = 2x2 –12x + 19 12. What is the correct factorization of 3x2 + 17x + 10? 13. What is the correct factorization of 5x2 – 7x + 2? 14. What are the solutions of -x2 – 12 = -87? 15. Write the expression as a complex number in standard form: (-1 + 2i)(11 - i) 16. Solve the equation: 6(u 5) 2 120 17. If x2 + 5x + c is a perfect square trinomial, what is the value of c? 18. What are the solutions of x2 + 20x + 104 = 0? 19. With the quadratic formula, find the solutions of 5x2 + 9x = - x2 + 5x + 1 20. Consider the quadratic function f(x) = -3x + 7x -2. Find the y intercept and the equation of the axis of symmetry. 21. A rocket is launched with an initial velocity of 94 feet per second from the top of a cliff 52 feet high. Its height is described by h(t) = -15t2 + 94t + 52. How long will the rocket take to hit the ground? 22. Johnson Manufacturing estimates that its profit P(in hundreds of dollars)after producing x thousand units can be expressed as P(x) = -2x2 + 104x + 16. How many units must be produced to obtain the maximum profit? 23. Multiple Choice: Solve 𝑥 2 + 6x = –6 by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are located. A) –2, –3 B) between –4 and –3; between –2 and –1 C) –3 D) between –5 and –4; between –2 and –1 24. Multiple Choice: What quadratic inequality is graphed? A) y ≥(x+4)(x-3) B) y ≤ x2 - x -12 C) y ≤ x2 + x + 12 D) y ≥ x2 - x -12 Chapter 5: Polynomials and Polynomial Functions 2x2 y 25. What is the simplified form of 1 6 xy 2 26. Subtract: (3x3 + 10x + 5) - (x3 – 4x + 6) 27. Add: (10x – 3 + 7x2) + (x3 - 2x + 17) 28. Find (3x-5)3 29. Factor completely: 3x4 + 9x3 + x2 + 3x 30. Factor completely: 10x3 + 20x7 31. Divide: (10x4 + 5x3+ 4x2 - 9 ) by (x + 1) 32. Determine the end behavior of the function: f(x) = -4x4 – 3x2 – x + 5 33. Multiple Choice: Which cubic equation is graphed? A) y = 4(x + 4)(x + 1)(x – 2) 1 B) y = 4(x + 4)(x + 1)(x – 2) 1 C) y = 4(x - 4)(x - 1)(x + 2) D) y = - 4(x + 4)(x + 1)(x – 2) 1 34. Find all the roots of x4 – 18x2 + 12x + 80 35. State the number of real zeros for the function whose graph is shown below: Chapter 8 – Rational Functions 35. Simplify and reduce the rational expression. 2 x3 y 2 3x 2 z 2 9 x4 z3 4 y 3 36. Identify all horizontal and vertical asymptotes of the graph of the following function: f ( x) 8 x2 4 37. Multiple Choice: What function matches the graph to the right? A) 𝑓(𝑥) = C) 𝑓(𝑥) = 1 𝑥−3 +1 1 𝑥+3 B) 𝑓(𝑥) = D) 1 𝑥+3 −1 1 𝑓(𝑥) = 𝑥−3 − 1 38. What are the domain and range of the function f ( x) 8 +2 x2 4 39. Graph the rational function f(x) 2x 2 3x 1 . x 2 5x 4 40. Simplify the rational expression. x 2 - 3x 2 x 2 5x - 6 41. Simplify the rational expression. x 2 8 x 16 x 2 6 x 8 x2 x2 4 42. Simplify the rational expression. 4x 3 x 1 x 1 43. Perform the operations and simplify: 44. Solve. 6 x1 4 2 x 9 x 3 x2 3 x 3 x 2 2 45. Perform the operations and simplify: 2x 3 1 15 x 9 46. Laurie can paint a fence in 7 hours and her friend Beth can paint a fence in 4 hours. How long will if take them if they paint the fence together.