Never true.
the sum of 3 odd numbers is always odd
J = (5,6)
K = (5,1)
L = (10,2)
For this case we must find the area of the cookie, knowing that it has a circular shape. By definition, the area of a circle is given by:

Where:
r: It is the radius of the circle
According to the data we have:

Thus, the area of the cookie is:

We have 

We round:

Thus, the area of the cookie is 
Answer:

Points (-1,4) (3,6)
Slope: (6-4)/(3+1) = 2/4
The slope is 1/2