Answer:
Reflection across the y-axis
Step-by-step explanation:
If you rotate it, it will come up upside down, and if you translate it, it would not be in the same position. The only one that makes sense on there is the reflection but even that doesn't make sense. The reflection line would be on 1 not the on the y-axis.
Sorry to say but you'll have to get it wrong to see the explanation. Or just guess.
(I don't mean to sound rude!!!!)
