WeBWorK Standalone Renderer

Match each function with its graph.

1. $f(x,y) = \displaystyle \frac{3}{1 + x^2 + y^2}$

2. $f(x,y) = 3 - x^2 - y^2$

3. $f(x,y) = \displaystyle 3 \cos\left( \frac{x^2+y^2}{4} \right)$

4. $f(x,y) = 3 - \sqrt{x^2+y^2}$

(You can drag the images to rotate them.)

A

B

C

D

You can earn 50% partial credit for 2 - 3 correct answers.