WeBWorK Standalone Renderer

Match each function with its graph. Click on a graph to make it larger.

1. $z = 3 \cos^2(x) \cos^2(y)$

2. $z = 3 \cos(xy)$

3. $z = |x| \, |y|$

4. $z = 6 x y e^{ - x^2 - y^2 }$

5. $z = 3 \sin(y)$

You can earn 60% partial credit for 3 - 4 correct answers.