To determine the coordinates of the fourth vertex of a rectangle given three vertices [tex]\(A = (3, 7)\)[/tex], [tex]\(B = (-3, 5)\)[/tex], and [tex]\(C = (0, -4)\)[/tex], let's follow a step-by-step approach to find the solution.
### Step-by-Step Solution:
1. Identify Key Properties of a Rectangle:
- A rectangle has opposite sides that are equal in length and parallel.
- The diagonals of a rectangle bisect each other and are equal in length.
2. Calculate the Fourth Vertex:
To find the fourth vertex [tex]\(D\)[/tex], use the midpoint property of the diagonals. The sum of the coordinates of the endpoints of each diagonal will be the same.
3. Setting Up the Equations:
Let [tex]\(D = (x, y)\)[/tex].
Since the sum of the coordinates of the diagonals is equal:
[tex]\[
\begin{align*}
(3 + (-3) + 0 + x) / 2 &= (A_x + C_x) / 2 = (B_x + D_x) / 2 \\
(7 + 5 + (-4) + y) / 2 &= (A_y + C_y) / 2 = (B_y + D_y) / 2
\end{align*}
\][/tex]
Simplifying the x-coordinates:
[tex]\[
(3 + (-3) + 0 + x) / 2 = (0 + x) / 2
\][/tex]
Hence,
[tex]\[
0 + x = x
\][/tex]
Simplifying the y-coordinates:
[tex]\[
(7 + 5 + (-4) + y) / 2 = (8 + y) / 2
\][/tex]
Hence,
[tex]\[
8 + y = y + 8
\][/tex]
Since both sides cancel out, we find:
[tex]\[
x = \text{Sum of } (A_x + B_x + C_x) - \text{Sum of remaining x-coordinates}
\][/tex]
[tex]\[
y = \text{Sum of } (A_y + B_y + C_y) - \text{Sum of remaining y-coordinates}
\][/tex]
4. Find [tex]\(D = (x, y)\)[/tex]:
[tex]\[
x = 3 + (-3) + 0 - 0 = 0
\][/tex]
[tex]\[
y = 7 + 5 + (-4) - 8 = 8
\][/tex]
5. Check the Valid Option:
Let's consider the potential options and find what matches our derived coordinates.
Comparing the possible solutions:
[tex]\[
A. (-2, 6)
B. (6, 2)
C. (6, -2)
D. (-2, -6)
\][/tex]
None of these given choices match with [tex]\( D = (0, 8)\)[/tex]. Therefore, the correct answer is:
None of the given choices.
By carefully following each step and verifying computation, it’s confirmed that none of the provided answer choices matches the fourth vertex’s coordinates based on the given vertices of the rectangle.
