Open and close the classroom door is translation or rotation, or translation plus rotation

rotate

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1. Is the classroom door translation or rotation
2. Does the door open in translation or rotation
3. Fill in the blank: the number of points on the graph___ It is the translation direction of the graph and the direction of the points on the graph___ Is the translation distance of the graph
4. In the process of translation, the translated image is the same as the original image______ And______ All are the same, so the corresponding line segment and the corresponding angle are the same______ ．
5. The corresponding line segment between the translated figure and the original figure_____ Corresponding angle_____ , corresponding to the line segment connected by the point____ .
6. The translated graph corresponds to the corresponding line segment () or () and () of the original graph, corresponding to the angle; the line segment () or () and () connected by the corresponding point
7. After the graph is translated, each point on the graph moves a certain distance in the same direction. The correct statement in the following example is that a different point moves a different distance, B different points move the same distance, C different points move the same distance, and d different points move the same distance. It is impossible to confirm the distance Please do me a favor. The reward points will be increased after solving
8. Translation of graphics If two figures on the same plane can always coincide completely through translation, no matter where they are placed, then the two figures are: a two triangles. B two regular triangles. C two circles with equal radius. D two figures with exactly the same shape and size
9. The translation of graph must satisfy the condition_____ And______
10. All the points on the graph move in a certain direction, which is called the translation of the graph
11. What is translation? Rotation Yes, speak more. No, don't talk nonsense!
12. Is the pendulum moving in translation or rotation?
13. The motion of the pendulum is () A. Translation B. rotation C. neither
14. Is the swing of the pendulum translation or rotation?
15. Is swing translation or rotation? Is the motion of pendulum translation or rotation?
16. Given the line y = - 1 / 2x + 1, how to translate the line along the x-axis to cross the origin
17. If the image of y = 2cos (X3 + π 6) is translated according to vector a = (− π 4, − 2), the analytic expression of the translated image is () A. y＝2cos(x3+π4)−2B. y＝2cos(x3−π4)+2C. y＝2cos(x3−π12)−2D. y＝2cos(x3+π12)+2
18. If the line y = 2x is translated according to the vector a, and the line y = 2x + 6 is obtained, then the vector a () A. Only (- 3,0) B. only (0,6) C can only be (- 3,0) or (0,6) d The correct answer is D, but I chose B, which is not "in the same plane, any vector has only a unique representation." so this question should choose B?
19. Let the line y = - 3x-1 translate the vector a = (- 2,2), and the linear equation is?
20. The line L: y = 2x is translated according to vector (3,0) to get the line L ×. The equation of the line is a: y = 2x-3 B: 2x + 3 C; y = 2 (x + 3) d: 2 (x-3)