How to plot a graph of this matrix ?

i can't plot the 3D graph

[darova]

What do you mean by 'plot'? If you solve this system you'll get 1 point

[Guillaume]

The equations are a bit misleading since row 3 can just be deleted, it's just , so actually there is an infinity of solution.

[darova]

agree

[Ian Samuelsson]

my teacher said that the graph was supposed to look like this, and that it was defined and determined, and i just can find 3 poins

[Ian Samuelsson]

but i apreciate the attention guys

[Star Strider]

I would like to see the code that produced that plot from those equations.

This is as close as I can get to it:

x = [-1 1]*20-5;
y = [-1 1]*20-5;
z = -[x + y - 1;
     2*x - y - 5;
     (4*x + y - 7)/3];

figure
surf(x,y,[1;1]*z(1,:))
hold on
surf(x,y,[1;1]*z(2,:))
surf(x,y,[1;1]*z(3,:))
hold off
grid on
axis square

[Ian Samuelsson]

wow is that wat i want, thank you so mutch man, have a good day !!

[Star Strider]

In that case, I posted it as an Answer!

I would very much appreciate it if you Accept it!

Answer 1

[Star Strider]

I would like to see the code that produced that plot from those equations.

This is as close as I can get to it:

x = [-1 1]*20-5;
y = [-1 1]*20-5;
z = -[x + y - 1;
     2*x - y - 5;
     (4*x + y - 7)/3];

figure
surf(x,y,[1;1]*z(1,:))
hold on
surf(x,y,[1;1]*z(2,:))
surf(x,y,[1;1]*z(3,:))
hold off
grid on
axis square

[Ian Samuelsson]

sorry for the wait mate, you deserve the accept answer !!!

[Star Strider]

Thank you!

.