Question

Draw a graph for each of they following.
1. f(x,y)=3y−x2
2. f(x,y)=3x−y2
3. f(x,y)=4−x2−3y2
4. f(x,y)=4−3x2−y2

Answer 1

i refer you to graphcalc.com
you can graph 3-d functions

Answer 2

See attachment. Hit "Good answer".

Answer 3

thanks guys