Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 HMH Go Math - Answer Keys
Chapter 9:Transformations and Congruence; Mixed Review


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Selected Response

  • Question 1 (request help)

    What would be the orientation of the figure L after a translation of 8 units to the right and 3 units up?
    • A
    • B
    • C
    • D
  • Question 2 (request help)

    Figure A is reflected over the y-axis and then lowered 6 units. Which sequence describes these transformations?
    • (x, y) -> (x, -y) and (x, y) -> (x, y - 6)
    • (x, y) -> (-x, y) and (x, y) -> (x, y - 6)
    • (x, y) -> (x, -y) and (x, y) -> (x - 6, y)
    • (x, y) -> (-x, y) and (x, y) -> (x - 6, y)
  • Question 3 (request help)

    What quadrant would the triangle be in after a rotation of 90° counterclockwise about the origin?
    • I
    • II
    • III
    • IV
  • Question 4 (request help)

    Which rational number is greater than \(-3 \large\frac{1}{3}\) but less than \( -\large\frac{4}{5}\)?
    • \(-0.4\)
    • \(- \large\frac{9}{7}\)
    • \(-0.19\)
    • \( -\large\frac{22}{5}\)
  • Question 5 (request help)

    Which of the following is not true of a trapezoid that has been reflected across the x-axis?
    • The new trapezoid is the same size as the original trapezoid.
    • The new trapezoid is the same shape as the original trapezoid.
    • The new trapezoid is in the same orientation as the original trapezoid.
    • The x-coordinates of the new trapezoid are the same as the x-coordinates of the original trapezoid.
  • Question 6 (request help)

    A triangle with coordinates (6, 4), (2, −1), and (−3, 5) is translated 4 units left and rotated 180° about the origin. What are the coordinates of its image?
    • (2, 4), (-2, -1), (-7, 5)
    • (4, 6), (-1, 2), (5, -3)
    • (4, -2), (-1, 2), (5, 7)
    • (-2, -4), (2, 1), (7, -5)
  • Question 7 (request help)

    A rectangle with vertices (3, -2), (3, -4), (7, -2), (7, -4) is reflected across the x-axis and then rotated 90° counterclockwise.

    a. In what quadrant does the image lie?
  •    
  • Question 7 (request help)

    b. What are the vertices of the image?
  • Type below:
  • Question 7 (request help)

    c. What other transformations produce the same image?
  • Type below:

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