Question

x-2y=0,3x+4y=20 solve it graphically (geometrically)

Answer 1

$x - 2y = 0 then \\ x = 2y \\ and \\ 3x + 4y =20 \\ 3 \times 2y +4y = 20 \\ 6y + 4y = 20 \\ 10y = 20 \\ y = 2 \\ so \\ x = 2y \\ = 2 \times 2 = 4$

Answer 2

Answer:

The solution to the given equation is at point (4,2) or x=4,y=2

Step-by-step explanation:

Given : Two equations  x-2y=0 and 3x+4y=20

To find : The solution of the equation graphically ?

Solution :  

Let, x-2y=0 equation 1

and 3x+4y=20 equation 2

Now, we plot these two equations.

The graph of x-2y=0 is shown with green line.

The graph of 3x+4y=20 is shown with blue line.

The solution to this system will be their intersection point.  

The intersection point of these graph is (4,2)

Refer the attached graph below.

Therefore, The solution to the given equation is at point (4,2) or x=4,y=2