26. In order to complete the square, what number should be added to both sides of the equation below? x2 + 12x + _____ = 13 + _____ 27. What are the solutions to the quadratic equation x2 + 10x = -25? 28. What are the solutions for the equation 3x2 + 2x 6 = 0? – 29. The graph of a parabolic curve is shown below. What is the equation of the graph in standard form? 30. What are the real roots of the quadratic function in the graph below? Find the equation of the parabola 31. Vertex (4, -3) Focus (4, -7) 32. Focus (1, -4) Directrix y = 4 33. Vertex (4, 4) Directrix y = -2 Find the Focus and Directrix 34. x2 3x 5y + 2 = 0 35. x2 4x + 8y 5 = 0 36. x2 3y 12 = 0 – – – – – – 37. Simplify 38. Simplify 39. Simplify i117 i(2i)(-4i) 40. Find a and b: 41. 42. 43. The owner of a ferry transport tourists during summer months at Outer Banks. Her profit, P, in millions of dollars, over the past several years can be modeled by the equation P = -0.56t2 +19.21t +120, where t = 0 represents 1980. What was her maximum profit? How much money did she make in 1991? 44. A rocket is shot in the air. The height in feet reached over time in seconds is given by the function f(x)= -3x2+78x+300. When will the rocket be at its maximum height? After how many seconds will it hit the ground?
26. In order to complete the square, what number should be added to both sides of the equation below? x2 + 12x + _____ = 13 + _____ 27. What are the solutions to the quadratic equation x2 + 10x = -25? 28. What are the solutions for the equation 3x2 + 2x – 6 = 0? 29. The graph of a parabolic curve is shown below. What is the equation of the graph in standard form? 30. What are the real roots of the quadratic function in the graph below? Find the equation of the parabola 31. Vertex (4, -3) Focus (4, -7) 32. Focus (1, -4) Directrix y = 4 33. Vertex (4, 4) Directrix y = -2 Find the Focus and Directrix 34. x2 – 3x – 5y + 2 = 0 35. x2 – 4x + 8y – 5 = 0 36. x2 – 3y – 12 = 0 37. Simplify i117 38. Simplify i(2i)(-4i) 39. Simplify 40. Find a and b: 41. 42. 43. The owner of a ferry transport tourists during summer months at Outer Banks. Her profit, P, in millions of dollars, over the past several years can be modeled by the equation P = -0.56t2 +19.21t +120, where t = 0 represents 1980. What was her maximum profit? How much money did she make in 1991? 44. A rocket is shot in the air. The height in feet reached over time in seconds is given by the function f(x)= -3x2+78x+300. When will the rocket be at its maximum height? After how many seconds will it hit the ground?