Stretch: How Signs Change Under Reflection
I can reflect a point across the x-axis, the y-axis, and both, and describe how the signs change.
🧠 The Challenge
reflectx-axisy-axisordered pairsign
Reflecting (a, b): across the x-axis → (a, −b); across the y-axis → (−a, b); across both → (−a, −b).
👀 Worked Example
Start at (3, 5). Across x-axis → (3, −5). Across y-axis → (−3, 5). Across both → (−3, −5).
✏️ Your Turn
0 of 3 checks complete
1. Reflect (2, 7) across the x-axis:
2. Reflect (−4, 3) across the y-axis:
3. Reflect (5, 6) across BOTH axes:
💬 Explain Your Thinking
Explain how each reflection changes the signs:
"Reflecting (a, b) across the x-axis gives blank; across the y-axis gives blank; across both gives blank."