Question

On a coordinate plane, 2 triangles are shown. The first triangle has points A (negative 1, negative 2), B (negative 4, negative 2), C (negative 1, negative 4). The second triangle has points A prime (1, 2), B prime (4, 2), C prime (1, 4). What rule describes the rotation about the origin? (x, y) → How many degrees was the figure rotated about the origin?

Answer 1

3rd and 2nd option

Explanation:

Answer 2

9514 1404 393

Answer:

• (x, y) ⇒ (-x, -y)
• 180°

Explanation:

Each image point has its signs reversed from the pre-image point.

(x, y) ⇒ (-x, -y) . . . . describes the rotation

Rotation from the third quadrant (A) to the first quadrant (A') is a rotation of 180°.