Plotting vector fields with Maple

> with(plots):

In each example plug in enough numbers so that you see why the vector field plot is what it is.

> fieldplot([x+1,y],x=-5..5,y=-5..5);

> fieldplot([3*x-2,x+y],x=-5..5,y=-5..5);

> fieldplot([y^2,-x^2],x=-5..5,y=-5..5);

Now, see if you can match each plot below with the command line that produced it. (There are four command lines and only three plots so one of the command lines was not used.)

>

>

>

> fieldplot([x+y,x-y+1],x=-5..5,y=-5..5);

> fieldplot([y-2*x,3+x+2*y],x=-5..5,y=-5..5);

> fieldplot([x-2*y,x+2+y],x=-5..5,y=-5..5);

> fieldplot([2*x+y,x-y],x=-5..5,y=-5..5);