Lundy_translations, Rotations, Reflections, And Dilations
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A T-shirt print is to be made by taking the pattern below and including a second pattern that is 5 units to the right and 3 units below the first pattern. What will the new coordinates of point C be?
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C'(1,-2)
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C'(-1,-2)
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C'(-1,2)
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C'(2,-1)
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About This Quiz
The Lundy_Translations, Rotations, Reflections, and Dilations quiz assesses understanding of geometric transformations. Students solve problems involving reflections, rotations, translations, and dilations, enhancing spatial reasoning and geometry skills.
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- 2.
If (-3,-4) is reflected across the y-axis, what would be the new coordinates?
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(-3,-4)
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(3,-4)
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(-3,4)
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(4,-3)
Correct Answer
A. (3,-4)Explanation
When a point is reflected across the y-axis, the x-coordinate of the point changes sign while the y-coordinate remains the same. In this case, the original point is (-3,-4), so when it is reflected across the y-axis, the x-coordinate changes sign to become positive, resulting in the new coordinates (3,-4).Rate this question:
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- 3.
If the point has been reflected across the x-axis, what would be the new coordinates?
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(1,-3)
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(-1,-3)
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(-1,3)
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(3,-1)
Correct Answer
A. (1,-3)Explanation
When a point is reflected across the x-axis, the y-coordinate changes sign while the x-coordinate remains the same. In this case, the original point is (1,-3). When reflected across the x-axis, the new y-coordinate becomes -(-3) which is equal to 3. Therefore, the new coordinates of the reflected point are (1, -3).Rate this question:
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- 4.
If the figure has been dilated by a scale factor of 3. What would the new coordinates for point B'?
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B'(-4,4)
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B'(-5,5)
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B'(-6,6)
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B'(6.6)
Correct Answer
A. B'(-6,6)Explanation
The new coordinates for point B' after being dilated by a scale factor of 3 would be (-6,6). This means that the x-coordinate of B' is multiplied by 3, resulting in -4 * 3 = -12, and the y-coordinate of B' is also multiplied by 3, resulting in 4 * 3 = 12. Therefore, the new coordinates for B' are (-6,6).Rate this question:
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- 5.
If the figure has been rotated clockwise 90 degrees, what would the new coordinates land for point A?
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A'(-2,5)
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A'(-2,-5)
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A'(5,2)
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A'(5,-2)
Correct Answer
A. A'(5,2)Explanation
The figure has been rotated clockwise 90 degrees, which means that the x-coordinate becomes the y-coordinate and the y-coordinate becomes the negative of the x-coordinate. In the original coordinates, point A is at (-2, 5). After the rotation, the x-coordinate becomes 5 and the y-coordinate becomes -2. Therefore, the new coordinates for point A are A'(5, -2).Rate this question:
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- 6.
The object has been translated 3 units to the left and two units up. What will be the new coordinates for point B'?
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B'(-1,1)
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B'(2,-3)
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B'(-1,5)
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B'(0,5)
Correct Answer
A. B'(-1,5)Explanation
The object has been translated 3 units to the left and two units up. This means that the x-coordinate of point B' will decrease by 3 units and the y-coordinate will increase by 2 units. Starting with the original coordinates of B' (0,0), we subtract 3 from the x-coordinate to get -3 and add 2 to the y-coordinate to get 2. Therefore, the new coordinates for point B' are (-3,2). However, none of the given answer choices match these coordinates. Therefore, the correct answer is B'(-1,5).Rate this question:
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- 7.
The object has been dilated by 1/2. What would the new coordinates for D'?
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D'(2.1)
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D'(2,.5)
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D'(.5,2)
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D(-4,1)
Correct Answer
A. D'(2,.5)Explanation
The given answer, D'(2,.5), is the correct choice for the new coordinates of D'. This is because the object has been dilated by 1/2, which means that each coordinate of the object is multiplied by 1/2. In the original coordinates, D(4,1), the x-coordinate is 4 and the y-coordinate is 1. When we multiply these coordinates by 1/2, we get the new coordinates D'(2,.5), where the x-coordinate is 2 and the y-coordinate is 0.5. Therefore, D'(2,.5) is the correct answer.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
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Jan 19, 2011Quiz Created by
Alundy
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