Parallelogram ABCD is shown. A is at negative 5, 1. B is at negative 4, 3. C is at negative 1, 3. D is at negative 2, 1. Parallelogram ABCD is rotated 90° counterclockwise. What rule shows the input and output of the rotation, and what is the new coordinate of A′? (x, y) → (−x, −y); A′ is at (5, −1) (x, y) → (−y, x); A′ is at (−1, −5) (x, y) → (y, −x); A′ is at (1, 5) (x, y) → (x, −y); A′ is at (−5, −1)

B. (x, y) → (−y, x); A′ is at (−1, −5)

Step-by-step explanation:

The rule for a rotation 90° counterclockwise is (x, y) → (−y, x)

so (-5, 1) → (−1, −5)

     (x, y) → (−y, x)

-1, -5

Step-by-step explanation:

answer: a. 74

step-by-step explanation:

it shows divided evenly, so add the 37+37 = 74

step-by-step explanation:

. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.