Question

Use the image to answer the question.



A coordinate plane showing three shaded rectangles.
The first step to determine that the rectangle in Quadrant III is congruent to the rectangle in Quadrant I was to rotate the first rectangle 90 degrees clockwise about the origin. What is the next step?

(1 point)
(
,
)

Answer 1

Reflect the rotated rectangle across the y-axis. (Reflection: (x,y) → (−x,y).)

For example, a vertex at (−2,−6) rotates 90° clockwise to (−6,2) and reflecting across the y-axis sends it to (6,2).