Question

A triangle is rotated 90° about the origin. Which rule describes the transformation? (x, y) - (-X, -y) O (x, y) - (-y, x) 0 (x,y) - (-y, -x) 0 (x, y) = (y,-x)

Answer 1

`(x,y)\rightarrow(y,-x)\text{ or }(x,y)\rightarrow(-y,x)`

Explanation:

When they are rotated 90 ° they can be clockwise or counterclockwise, each one has a specific rule, they are the following:

`\begin{gathered} \text{ Clockwise} \\ (x,y)\rightarrow(y,-x) \\ \text{ Counterclockwise} \\ (x,y)\rightarrow(-y,x) \end{gathered}`