Question

A reflection of the pink triangle is shown. Which transformation makes this reflection?

A) (x', y') = (y, x)
B) (x', y') = (x, -y)
C) (x', y') = (-x, y)
D) (x', y') = (-x, -y)

Answer 1

(x, y) → (-x, y).

Step-by-step explanation:

(x, y) → (-x, y). is correct. For example, the point (-3, 5) on triangle 1 goes to (3, 5) on triangle 2.

Answer 2

The Answer is B) (x', y') = (x, -y)

Step-by-step explanation:

(x', y') = (x, -y) is correct. The y-values change signs, but the x-values remain the same.