0
Still curious? Ask our experts.
Chat with our AI personalities
Ross
Blake
ProfessorA 90-degree counterclockwise rotation can be achieved by swapping the x and y coordinates and negating the new x-coordinate. For a point (x, y), the new coordinates after a 90-degree counterclockwise rotation would be (-y, x). This transformation is commonly used in geometry and computer graphics to rotate objects around a fixed point.
Add your answer:
Earn +20 pts
What single transformation is equivalent to a 90 degree counterclockwise rotation followed by a 270 degree counterclockwise rotation?
You went 360o in the same direction, so you end up with a circle.
What is a 90 degree counterclockwise angle equivalent to?
Rotation preserves shape - therefore the angle before the rotation equals the angle after the rotation.
What is the formula for a 90 degree rotation?
A 90 degree rotation is a quarter of a turn.
How do you get an ordered pair of 90 degrees?
Assume we want to find the ordered pair after 90° counterclockwise rotation. From (x,y), we have (-y,x). If we want to find the ordered pair after 90° clockwise rotation, then from (x,y) we have (y, -x)
What is the image of the point (43) if the rotation is 90 degrees?
The answer will depend on whether the rotation is clockwise or counterclockwise.
