A translation moves point V(–2, 3) to V prime (negative 2, 7). Which are true statements about the translation?
The point moves two units left and four units up.
The transformation rule is (x, y) right-arrow (x + 0, y + 4).
The transformation is a vertical translation.
The image is four units to the left of the pre-image.
The translation can be described as (x, y) right-arrow (x minus 2, y + 7).

Respuesta :

The true statements about the translation are:

The transformation rule is (x, y) right-arrow (x + 0, y + 4) ⇒ 2nd

The transformation is a vertical translation ⇒ 3rd

Step-by-step explanation:

Let us revise the translation of a point

  • If the point (x , y) translated horizontally to the right by h units  then its image is (x + h , y)
  • If the point (x , y) translated horizontally to the left by h units  then its image is (x - h , y)
  • If the point (x , y) translated vertically up by k units  then its image is (x , y + k)
  • If the point (x , y) translated vertically down by k units  then its image is (x , y - k)

∵ The coordinates of point V are (-2 , 3)

∵ The coordinates of point V' are (-2 , 7)

- The x-coordinate does not change but the y coordinate

   changes, that means the translation is vertically only

The translation is vertically

∵ The rule of the vertical transformation of point (x , y) is:

   (x , y) → (x + 0 , y + k)

∵ The y-coordinate in V = 3

∵ The y-coordinate in V' = 7

∴ 3 + k = 7

- Subtract 3 from both sides

∴ k = 4

- That means point V is translated 4 units up

The transformation rule is (x , y) → (x + 0 , y + 4)

The true statements about the translation are:

The transformation rule is (x, y) right-arrow (x + 0, y + 4)

The transformation is a vertical translation

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Answer:

2 and 3

Step-by-step explanation:

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