In the second diagnosis! In the rectangular coordinate plane, the distance from a moving point P on the right side of the y-axis to the point (1 / 2,0) is 1 / 2 larger than the distance from it to the y-axis, so the trajectory C of the moving point P is called

In the second diagnosis! In the rectangular coordinate plane, the distance from a moving point P on the right side of the y-axis to the point (1 / 2,0) is 1 / 2 larger than the distance from it to the y-axis, so the trajectory C of the moving point P is called

Let the coordinates of any point on C be (x, y)
(X-1/2)^2+Y^2=(x+1/2)^2
Just simplify
Note: (x-1 / 2) ^ 2 represents the square of (x-1 / 2)