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QuestionMathematics

As shown in the graph below, the quadrilateral is a rectangle. Which transformation would not map the rectangle onto itself? A reflection over the x-axis A reflection over the line x= 4 A rotation of 180° about the origin A rotation of 180° about the point (4,0)
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Answer

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Step 1:
Let's solve this step by step:

Step 2:
: Understand the Rectangle's Properties

- The rectangle appears to have vertices at (0,0), (8,0), (8,4), and (0,4) - The width is 8 units - The height is 4 units - The center of the rectangle is at the point (4,2)

Step 3:
: Analyze Reflection over x-axis

- This reflection would map (x,y) to (x,-y) - The vertices would become (0,0), (8,0), (8,- 4), and (0,- 4) - This DOES NOT map the rectangle onto itself

Step 4:
: Analyze Reflection over x = 4

- This reflection would map (x,y) to (8 -x,y) - The vertices would become (8,0), (0,0), (0,4), and (8,4) - This DOES map the rectangle onto itself

Step 5:
: Rotation 180° about Origin

- This rotation maps (x,y) to (-x,-y) - The vertices would become (0,0), (- 8,0), (- 8,- 4), and (0,- 4) - This DOES map the rectangle onto itself

Step 6:
: Rotation 180° about (4,0)

- This rotation maps (x,y) to (8 -x,-y) - The vertices would become (8,0), (0,0), (0,- 4), and (8,- 4) - This DOES map the rectangle onto itself

Final Answer

A reflection over the x-axis would NOT map the rectangle onto itself.