Solve systems of equations graphically

Hi, I'm searched many web pages and didn't find out specific and easy answer so I'm writing here and hoping to get the answer.

So there is the system:

Answer 1

[David Hill]

Do you just want to plot them to see where the curves cross?

x=-5:5;
y=.5*x.^2-2;
z=x+2;
plot(x,y,x,z);
grid on;
grid minor;

[Karolis Kazlauskas]

Yes, thats is exactly as i want, thank you and maybe you could help me with another difficulty I'm dealing with? It's function: I need to count function y=f(x) meanings when x is changing from x0 to xn. I think I need to create function y values table and then I have to draw a graphic.

[David Hill]

x=.1:.001:3;%not sure what interval you want to plot
y=x.^(1/3)-4./x;
plot(x,y);

[Karolis Kazlauskas]

Thank you!