Differentiation, Contour Diagram, and Table

I'm stuck with this problem, and I'm not sure how to do it.
I could really use some help! Thanks in advance!

f(x,y) gives the temperature in celsius degrees and is differentiable. X and Y are distance (centimeters).
The partial derivative of function f in respect to X at point (3,5) is -2. The partial derivative of f in respect to Y at point (3,5) is -2.
At f(3,5) = 48.

-How would I draw a contour diagram near (3,5)?
-And how do I create an estimated table to represent the function near (3,5)?