Page 2: Advanced Reflection Lines

This page expands on reflection concepts by introducing reflections over vertical lines other than the y-axis and horizontal lines other than the x-axis, as well as diagonal reflections.

Vocabulary: The line y=x is a diagonal line that serves as a line of reflection, creating a unique type of transformation.

Example: For reflection over y=x, the rule (x,y) = (y,x) is applied, swapping x and y coordinates.

The page includes six detailed examples:

• Triangle JKL reflection over x=4
• Square RSTU reflection over x=-1
• Parallelogram CDEF reflection over y=2
• Triangle MNP reflection over y=-5
• Triangle XYZ reflection over y=x
• Rectangle GHIJ reflection over y=x

Page 3: Line of Reflection Identification

This page focuses on identifying lines of reflection and working with the line y=-x as a reflection line. It emphasizes practical problem-solving techniques.

Highlight: Finding the midpoint between corresponding points can help identify the line of reflection.

Example: For reflection over y=-x, the rule (x,y) = (-y,-x) is applied.

The page includes:

• Square ABCD reflection over y=-x
• Triangle STU reflection over y=-x
• Six exercises for identifying various lines of reflection including y-axis, x-axis, y=x, and specific vertical and horizontal lines

Definition: The line of reflection is the line that acts as a mirror, creating a symmetrical image of the original shape.