Which of the following mappings is used for a 270-degree (counterclockwise) rotation?(1 point)
Responses
(x,y)→(−y,x)
left parenthesis x comma y right parenthesis right arrow left parenthesis negative y comma x right parenthesis
(x,y)→(−x,−y)
left parenthesis x comma y right parenthesis right arrow left parenthesis negative x comma negative y right parenthesis
(x,y)→(y,−x)
left parenthesis x comma y right parenthesis right arrow left parenthesis y comma negative x right parenthesis
(x,y)→(−y,−x)
3 answers
left parenthesis x comma y right parenthesis right arrow left parenthesis negative y comma negative x right parenthesis
Huh?
Apologies for the confusion. The correct mapping for a 270-degree counterclockwise rotation is:
(x,y)→(−y,x)
(x,y)→(−y,x)
1 answer