Question

The point of intersection of the lines $y=3x$ and $x=3y$ is :

• A. (3, 0)
• B. (0, 3)
• C. (3, 3)
• D. (0, 0)

Answer 1

The correct option is D (0, 0)

The point of intersection of lines $y=3x$(black line) and $x=3y$(brown line) must satisfies both the equation.
From the graph, we can see that solution is (0,0).

Hence the point of intersection of given lines is at origin i.e. $(0,0)$.