Polygon [tex]\( ABCD \)[/tex] has vertices at [tex]\( A (-4, 6) \)[/tex], [tex]\( B (-2, 2) \)[/tex], [tex]\( C (4, -2) \)[/tex], and [tex]\( D (4, 4) \)[/tex]. It is dilated using a scale factor of [tex]\( \frac{3}{5} \)[/tex] to create polygon [tex]\( A'B'C'D' \)[/tex]. If the dilation is centered at the origin, determine the vertices of polygon [tex]\( A'B'C'D' \)[/tex].

A. [tex]\( A' (-2.4, 3.6) \)[/tex], [tex]\( B' (-1.2, 1.2) \)[/tex], [tex]\( C' (2.4, -1.2) \)[/tex], [tex]\( D' (2.4, 2.4) \)[/tex]

B. [tex]\( A' (5.8, -3) \)[/tex], [tex]\( B' (1, 6, -1.5) \)[/tex], [tex]\( C' (-1.6, 3) \)[/tex], [tex]\( D' (2.5, 3) \)[/tex]

C. [tex]\( A' (-12, 18) \)[/tex], [tex]\( B (-6, 6) \)[/tex], [tex]\( C (12, -6) \)[/tex], [tex]\( D' (12, 12) \)[/tex]

D. [tex]\( A' (2.4, -3.6) \)[/tex], [tex]\( B' (1.2, -1.2) \)[/tex], [tex]\( C' (-2.4, 1.26) \)[/tex], [tex]\( D' (-2.4, -2.4) \)[/tex]



Answer :

To solve the problem of finding the vertices of the polygon [tex]\(A'B'C'D'\)[/tex] after dilation, we need to perform the following steps:

1. Identify the original coordinates of the vertices:
- [tex]\(A(-4,6)\)[/tex]
- [tex]\(B(-2,2)\)[/tex]
- [tex]\(C(4,-2)\)[/tex]
- [tex]\(D(4,4)\)[/tex]

2. Use the given scale factor for dilation: [tex]\(\frac{3}{5}\)[/tex].

3. Dilation calculation:
- To dilate a point [tex]\((x, y)\)[/tex] by a scale factor [tex]\(k\)[/tex] centered at the origin, the new coordinates [tex]\((x', y')\)[/tex] are given by:
[tex]\[ x' = k \cdot x \][/tex]
[tex]\[ y' = k \cdot y \][/tex]

4. Calculate the new coordinates after dilation:
- For the vertex [tex]\(A (-4, 6)\)[/tex]:
[tex]\[ A' = \left( \frac{3}{5} \cdot (-4), \frac{3}{5} \cdot 6 \right) = (-2.4, 3.6) \][/tex]

- For the vertex [tex]\(B (-2, 2)\)[/tex]:
[tex]\[ B' = \left( \frac{3}{5} \cdot (-2), \frac{3}{5} \cdot 2 \right) = (-1.2, 1.2) \][/tex]

- For the vertex [tex]\(C (4, -2)\)[/tex]:
[tex]\[ C' = \left( \frac{3}{5} \cdot 4, \frac{3}{5} \cdot (-2) \right) = (2.4, -1.2) \][/tex]

- For the vertex [tex]\(D (4, 4)\)[/tex]:
[tex]\[ D' = \left( \frac{3}{5} \cdot 4, \frac{3}{5} \cdot 4 \right) = (2.4, 2.4) \][/tex]

5. The vertices of the dilated polygon are:
[tex]\[ A'(-2.4, 3.6), B'(-1.2, 1.2), C'(2.4, -1.2), D'(2.4, 2.4) \][/tex]

Thus, the correct choice, considering the dilation transformation, is:
[tex]\[ A^{\prime}(-2.4, 3.6), B^{\prime}(-1.2, 1.2), C^{\prime}(2.4, -1.2), D^{\prime}(2.4, 2.4) \][/tex]

This corresponds to the final option provided in the problem:

[tex]\(\boxed{A'(-2.4, 3.6), B'(-1.2, 1.2), C'(2.4, -1.2), D'(2.4, 2.4)}\)[/tex].