Question

Match the rotation rule with its degree
1. (x,y) ---> (y,-x)

2. (x,y) ---> (-y,x)

3.(x,y) ---> -x,-y)

4.(x,y) ----> (x,y)

a.
180 degree rotation
b.
270 degree rotation
c.
360 degree rotation
d.
90 degree rotation

Answer 1

Here are the matches for the rotation rules with their corresponding degrees:

1. (x,y) ---> (y,-x) - **d. 90 degree rotation**
2. (x,y) ---> (-y,x) - **b. 270 degree rotation**
3. (x,y) ---> (-x,-y) - **a. 180 degree rotation**
4. (x,y) ---> (x,y) - **c. 360 degree rotation**

So the correct matches are:
1 - d
2 - b
3 - a
4 - c