Given:
Given that the graph of the linear equation.
We need to determine the equation of the graph.
Slope:
The slope of the equation can be determined using the formula,

Let us substitute the coordinates (2,0) and (0,-4) in the above formula, we get;



Thus, the slope of the equation is 2.
y - intercept:
The y - intercept of the equation is the value of y when x = 0.
Hence, from the graph, it is obvious that when x = 0, the value of y is -4.
Therefore, the value of the y - intercept is b = -4.
Equation of the line:
The equation of the line can be determined using the formula,

Substituting the values, we have;

Subtracting both sides by 2x, we have;

Dividing both sides by -1, we get;

Thus, the equation of the line is

Hence, Option B is the correct answer.