(25 POINTS) Parallelogram ABCD is rotated 90° counterclockwise. What rule shows the input and output of the rotation, and what is the new coordinate of A′ ? A = (-5, 1)

a. (x, y) → (−x, −y); A′ is at (5, −1)
b. (x, y) → (−y, x); A′ is at (−1, −5)
c. (x, y) → (y, −x); A′ is at (1, 5)
d. (x, y) → (x, −y); A′ is at (−5, −1)

answer: idk

step-by-step explanation:

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

c. side angle side. u shares the same sides

step-by-step explanation:

when the line is solid:

when the line is dashed:

this > inequality sign means:

this < inequality sign means:

this > inequality sign means:

this < inequality sign means:

about the problem:

srry i'm not done ! i'll