Question

Choose the equation which depicts the line shown in the following graph:

• A. 2x + y = 0
• B. 2x - y = 0
• C. x + 2y = 0
• D. x - 2y = 0

Answer 1

The correct option is B 2x - y = 0

Substitute the values one by one in the given options. The one which satisfies these values is the equation of the line on the graph.
2x - y = 0
2x = y
at x = 1, y = 2
at x = -1, y = -2

$\therefore$ The line on the graph shows the equation, 2x - y = 0.