Y2-y1/x2-x1
8-[-13]/17-17
21/0
this is called undefined because its denominator is zero.
Answer:
the area= 12.25 one side =: 1.5 then the dimension then answer is 13.75
I'll use subscript notation for brevity, i.e.
.
By the chain rule,



We have

and

When
, we have

and the partial derivatives take on values of

So we end up with

1/4 of 8 is 2. So 2 of the cubicles are carpeted.