Which rules could describe the rotation? Select two options. R0, 90° R0, 180° R0, 270° (x, y) → (–y, x) (x, y) → (–x, –y)

1. R0, 90° (counterclockwise) R0, 270° (clockwise)

2. R0, 180° (clockwise and counterclockwise) rotation

Step-by-step explanation:

Here, we want to state the type of rotation in the activity

1. (x,y) turning to (-y,x)

This rotation is ;

90 degrees counter-clockwise

and;

270 degrees clockwise

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

we have this as;

180 degrees clockwise rotation and 180 degrees counter-clockwise rotation

what’s the question?

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -