Let the equation of the line L1 be x + 2y-2 = 0, and rotate the line L1 90 ° counterclockwise around the origin to get the line L2, then the equation of L2 is______ .

Let the equation of the line L1 be x + 2y-2 = 0, and rotate the line L1 90 ° counterclockwise around the origin to get the line L2, then the equation of L2 is______ .


The equation of the line L1 is x + 2y-2 = 0. Rotate the line L1 90 ° counterclockwise around the origin to get the line L2, and the slope of L2 is: 2. Rotate (2,0) on the line L1 90 ° counterclockwise around the origin to get the point (0,2) of the line L2, so the equation of L2 is 2x-y + 2 = 0, so the answer is: 2x-y + 2 = 0