Question

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Part 1
Writing  Begin with point Aleft parenthesis negative 8 comma negative 5 right parenthesis. Reflections across the axes will produce points​ B, C, and D so that ABCD is a rectangle. What are the coordinates of point Upper D​? What is the length of side AUpper D​? Use pencil and paper. Explain how to use what you know about reflections to find the coordinates of the remaining 2 vertices. Explain how you can find the perimeter of the rectangle.
x
y
A
B
C
D



x y graph
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Part 1
The coordinates of point Upper D is
  
enter your response here.
​(Type an ordered​ pair.)

Answer 1

D = (-8, 5)

(Reflection across the x-axis changes the y-coordinate sign, so A(-8,-5) reflects to D(-8,5).)