Learning to reflect a parallelogram over the y=x line

The video tutorial explains how to reflect points over the Y = X line. It begins with an introduction to the concept of reflection, followed by graphing a set of points to form a parallelogram. The instructor then demonstrates how to algebraically reflect these points by swapping their X and Y coordinates. Finally, the reflected points are plotted on a graph to verify the transformation.

What is the key operation to perform when reflecting a point over the Y = X line?

• Swap the X and Y coordinates

• Add the X and Y coordinates

• Subtract the X coordinate from the Y coordinate

• Multiply the X and Y coordinates

When plotting points to form a shape, why is it important to label them?

• To make the graph look more colorful

• To easily identify and reference them during transformations

• To ensure the points are in alphabetical order

• To confuse the viewer

Which of the following points is the correct reflection of (2, -3) over the Y = X line?

• (2, 3)

• (-2, 3)

• (3, -2)

• (-3, 2)

What is the new coordinate of point R, originally at (-2, 3), after reflecting over the Y = X line?

• (-3, 2)

• (3, -2)

• (-2, 3)

• (2, -3)

How can you verify that a shape has been correctly reflected over the Y = X line?

• By ensuring the shape is rotated 90 degrees

• By confirming that all points have swapped X and Y coordinates

• By counting the number of points

• By checking if the shape is larger