Answer:
(-2,4)
Step-by-step explanation:



This implies
.
This means
and
.
Subtract 3 on both sides for first equation:
.
Add 3 on both sides for the second equation:
.
So the pre-image (x,y) is (-2,4) if the image is (1,1).
Let's check:



So the solution has been checked and verified.
Answer:
1
Step-by-step explanation:

The area of the square can be expressed as

So to go back to the side length, you just need to find the square root of the area.
Answer:
0.25
Step-by-step explanation: