Matching
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Match
the correct question to its answer.
a. | Change the value of the y-coordinate to its opposite
sign.
| b. | Change the value of the x-coordinate to its opposite
sign.
| c. | Exchange the x and y coordinates, and change the value of the
first coordinate to its opposite sign. | | |
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| 1. | How
do you determine the coordinates of a point after a reflection in the y-axis?
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| 2. | How
do you determine the coordinates of a point after a 90° counterclockwise rotation about the
origin?
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| 3. | How
do you determine the coordinates of a point after a reflection in the x-axis?
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Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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| 4. | Given
the point A(-3, 5), determine the coordinates of point A¢ after a reflection in the
y-axis.
a. | (-3,
-5) | b. | (3,
5) | c. | (5,
-3) | | |
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| 5. | Given
the point B(5, -2), determine the coordinates of point B¢ after a reflection in the
x-axis.
a. | (-5,
-2) | b. | (-2,
5) | c. | (5,
2) | | |
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| 6. | Given
the point C(4, 2), determine the coordinates of point C¢ after a ccw rotation of 90°.
a. | (-4, 2) | b. | (2,
4) | c. | (-2,
4) | | |
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| 7. | Given
the point D(5, 2), determine the coordinates of point D¢ after a reflection in the line that passes through
the origin and (1, 1).
a. | (-5, -2) | b. | (2,
5) | c. | (-2,
5) | d. | (5,
-2) | | |
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| 8. | Given
the point B(6, 2), determine the coordinates of point B¢ after a 180° ccw rotation..
a. | (-6,
-2) | b. | (6,
2) | c. | (2,
6) | d. | (-2,
6) | | |
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| 9. | Given
the point A(3, 5), determine the coordinates of point A¢ after a cw rotation of 270°.
a. | (5, 3) | b. | (-3,
5) | c. | (-5,
3) | | |
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| 10. | The
quadrilateral ABCD has vertices at A(1, 1), B(1, 4), C(5, 4), and D(5, 1). Determine the
coordinates of B¢¢ after a reflection in the x-axis, followed by a reflection in the
y-axis.
a. | (-1,
-4) | b. | (1,
-4) | c. | (-1,
4) | d. | (1,
4) | | |
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