Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 HMH Go Math - Answer Keys
Chapter 9:Transformations and Congruence; Lesson 3: Properties of Rotation


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Draw the image of the figure after the given rotation about the origin.

  • Question 16 (request help)

    Is there a rotation for which the orientation of the image is always the same as that of the preimage? If so, what?
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FOCUS ON HIGHER ORDER THINKING

  • Question 17 (request help)

    Problem Solving Lucas is playing a game where he has to rotate a figure for it to fit in an open space. Every time he clicks a button, the figure rotates 90 degrees clockwise. How many times does he need to click the button so that each figure returns to its original orientation?

    Figure A____________

    Figure B____________

    Figure C____________
  • Figure A:   time(s)
    Figure B:   time(s)
    Figure C:   time(s)
  • Question 18 (request help)

    Make a Conjecture Triangle ABC is reflected across the y-axis to form the image A′B′C′. Triangle A′B′C′ is then reflected across the x-axis to form the image A″B″C″. What type of rotation can be used to describe the relationship between triangle A″B″C″ and triangle ABC?
  • Type below:
  • Question 19 (request help)

    Communicate Mathematical Ideas Point A is on the y-axis. Describe all possible locations of image A′ for rotations of 90°, 180°, and 270°. Include the origin as a possible location for A.
  • Type below:

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