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42. What must be added to the expression x -3x + A. 6 to make it a perfect square trinomial? В.9 D. EniN

42. What must be added to the expression x -3x + A. 6 to make it a perfect square trinomial? В.9 D. EniN

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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B. y = (x +1) -2 A. y= 2+(x +1) 42. What must be added to the expression x -3x + A. 6 43. Which of the following quadratic functions is in the vertex form? A. y=ax + bx +c 44. Which of the following is the square of a binomial x - 20x +100? A. (x+10) For item numbers 45 - 47, refer to the quadratic function f(x) = 3x2 + 5. 45. What is the vertex of the function? A. (0, 5) 46. What is the equation of the axis of symmetry? A. x = 0 47. What is the y-intercept? A. 0 48. What is the direction of the opening of the graph of y = 4x2? A. Upward 49. If the graph of y = x is shifted 7 units to the left, what will be the new equation? A. y = x + 7 50. Find two numbers such that their difference is 10 and they have the minimum product. What is the minimum D. y = (x +22) – 1 to make it a perfect square trinomial? C. y (x +1) +1 В.9 D. - B. y-c =bx C. y = a(x+c) + k D.y = a(x - h + k %3D B. (x + 20) C. (x-10) D. (x- 20) B, (5, 0) С. (3, 5) D. (5, 3) B. x = 5 C. y = 0 D. y = 5 В.3 C. 5 D. 15 B. Downward C. Left D. Right B. y = x - 7 C. y = (x-7) D. y = (x + 7= nrndurt?
Transcribed Image Text:B. y = (x +1) -2 A. y= 2+(x +1) 42. What must be added to the expression x -3x + A. 6 43. Which of the following quadratic functions is in the vertex form? A. y=ax + bx +c 44. Which of the following is the square of a binomial x - 20x +100? A. (x+10) For item numbers 45 - 47, refer to the quadratic function f(x) = 3x2 + 5. 45. What is the vertex of the function? A. (0, 5) 46. What is the equation of the axis of symmetry? A. x = 0 47. What is the y-intercept? A. 0 48. What is the direction of the opening of the graph of y = 4x2? A. Upward 49. If the graph of y = x is shifted 7 units to the left, what will be the new equation? A. y = x + 7 50. Find two numbers such that their difference is 10 and they have the minimum product. What is the minimum D. y = (x +22) – 1 to make it a perfect square trinomial? C. y (x +1) +1 В.9 D. - B. y-c =bx C. y = a(x+c) + k D.y = a(x - h + k %3D B. (x + 20) C. (x-10) D. (x- 20) B, (5, 0) С. (3, 5) D. (5, 3) B. x = 5 C. y = 0 D. y = 5 В.3 C. 5 D. 15 B. Downward C. Left D. Right B. y = x - 7 C. y = (x-7) D. y = (x + 7= nrndurt?
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