A triangle has vertices at B(−3, 0), C(2, −1), D(−1, 2). Which transformation would produce an image with vertices B″(−2, 1), C″(3, 2), D″(0, −1)?

a
(x, y) → (x, −y), (x, y) → (x + 1, y + 1)

b
(x, y) → (−x, y), (x, y) → (x + 1, y + 1)

c
(x, y) → (x, −y), (x, y) → (x + 2, y + 2)

d
(x, y) → (−x, y), (x, y) → (x + 2, y + 2)

Respuesta :

C
Answer the answer is (c)

(x, y) → (x, −y), (x, y) → (x + 1, y + 1)  transformation would produce an image with vertices B″(−2, 1), C″(3, 2), D″(0, −1).

What is transformation of an image?

A transformation is a process that manipulates a polygon or other two-dimensional object on a plane or coordinate system. Mathematical transformations describe how two-dimensional figures move around a plane or coordinate system.

Given

A triangle has vertices at B(−3, 0), C(2, −1), D(−1, 2).

Option A :

(x, y) → (x, −y), (x, y) → (x + 1, y + 1)

B(-3, 0) ⇒ (-3, -0) = (-3, 0) , (-3, 0) ⇒ (-3 + 1, 0 + 1) = (-2, 1)

Option B :

(x, y) → (−x, y), (x, y) → (x + 1, y + 1)

B(-3, 0) ⇒ (-(-3), 0) = (3, 0) , (3, 0) ⇒ (3 + 1, 0 + 1) = (4, 1)

Option C :

(x, y) → (x, −y), (x, y) → (x + 2, y + 2)

B(-3, 0) ⇒ (-3, -0) = (-3, 0) , (-3, 0) ⇒ (-3 + 2, 0 + 2) = (-1, 2)

Option D :

(x, y) → (−x, y), (x, y) → (x + 2, y + 2)

B(-3, 0) ⇒ (-(-3), 0) = (3, 0) , (3, 0) ⇒ (3 + 2, 0 + 2) = (5, 2)

So, (x, y) → (x, −y), (x, y) → (x + 1, y + 1)  transformation would produce an image with vertices B″(−2, 1), C″(3, 2), D″(0, −1).

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