Write the coordinates of the vertices after a rotation 90° counterclockwise around the origin.

y

x

-10

10

-10

10

0

S

T

U

V



S(-7, -9)

→

S′(

9

,

-7

)

T(-7, 0)

→

T′(

,

)

U(-2, 0)

→

U′(

,

)

V(-2, -9)

→

V′(

,

)