Hope this helps with the answer to your question:)
By comparing the perimeters, we can deduce the scaling factor:

The areas scale with the square of the scaling factor, so the new area is

Answer:
1
Step-by-step explanation:
To find the slope of the line, use the equation:
slope = 
Let's find 2 obvious points on the line
(5,5) and (10,10)
Since (10,10) comes after (5,5), this will be our 
(5,5) will be our 
Let's Solve!

1
Therefore, our slope is 1