Current location - Training Enrollment Network - Mathematics courses - Junior high school mathematics is in urgent need of help. How to rotate the shape around 0 point 180 degrees? In addition, what about the symmetry of the original point in the plane rectangular coordi
Junior high school mathematics is in urgent need of help. How to rotate the shape around 0 point 180 degrees? In addition, what about the symmetry of the original point in the plane rectangular coordi
Junior high school mathematics is in urgent need of help. How to rotate the shape around 0 point 180 degrees? In addition, what about the symmetry of the original point in the plane rectangular coordinate system? Thank you. A point (x, y) rotates around the origin. The coordinates of 180 are (-x, -y).

Therefore, if the equation of a graph is known and it is required to rotate 180 around the origin, it is only necessary to replace x and y in the original equation with -x and -y respectively.

The coordinates of the point where the point (x, y) is symmetrical with respect to the point (a, b) are (2a-x, 2b-y).