Given point A (2,4) on the triangle and quadrant l, where is the new point if the triangle is rotated 90 degrees counterclockwise?
To rotate a point 90 degrees counterclockwise, you can swap the x and y coordinates of the point and then negate the new x coordinate.
Given point A (2,4):
Swapping x and y coordinates: (4,2)
Negating the new x coordinate: (-4,2)
Therefore, the new point after rotating point A (2,4) 90 degrees counterclockwise is (-4,2).