Reflecting a point is the idea of opposites on a grid: same distance, the other direction. Warm up reading ordered pairs and flipping a direction (left↔right, up↔down) and reflections feel like a mirror.
Answer these 3, then press Show my path. No grade — this just points you to the right level.
1. What is the opposite direction of left?
2. A point is 3 steps right of 0. Its mirror is the same distance the other way. How far left?
3. In (x, y), which number tells how far up or down?
A reflection is a mirror flip. The point stays the same distance from the line, but on the opposite side. So you flip one direction: left becomes right, or up becomes down — the distance does not change.
Your quick check picks one for you, but you can switch any time:
Level 0 Flip a single direction.
A. What is the opposite of up?
Up and down are opposites.
B. A point is 5 right of 0. Its mirror is the same distance left. How far left is it?
Same distance, other side: 5.
C. A point is 2 up. Its mirror is the same distance down. How far down?
Distance stays the same: 2.
Level 1 Keep the distance, flip the side.
A. A point is 7 steps right. Flipped to the other side, it is 7 steps ___.
Flip right to its opposite: left. Distance stays 7.
B. A point is 6 steps up. Its mirror across the across-line is how many steps down?
Same distance: 6 down.
Level 2 Stretch into ordered-pair flips.
A. Point (3, 2) flips left/right to the other side. Its distance from the center stays the same: ___ steps across.
The x distance is 3, and a flip keeps the distance.
B. A point is 8 up. After flipping up/down, how far down is it?
Same distance, opposite side: 8.
1. A point is 4 steps up. Flipped to the other side, it is 4 steps ___.
Up flips to down; distance stays 4.
2. A point is 5 steps right. Its mirror is how many steps left?
Same distance, other side: 5.
You've practiced exactly what Lesson 9-7 uses. Time to dive in.
Start Lesson 9-7 →