Move the root sign to the right, move it to the left, then square the two sides, and then move the square of Y-2 to the left, and you can remove the square of y, and finally simplify it to: 6-2Y=X square +2 times |Y-3|. Now let's discuss, 1, when y is greater than or equal to 3. The square of x +4Y- 12=0 is a parabola. 2. When y is less than 3. The square of x is equal to 0, and the trajectory is the part where the y axis is less than 3.