$\"\"$

The diffrential equation is $\"\"$ .

(1).Draw the coordinate plane.

(2).Graph the diffrential equation $\"\"$ .

Graph :

$\"\"$

Observe the graph :

The diffrential equation $\"\"$ represents the graph $\"\"$ .

Explanation :

The slopes at each point are independent at $\"\"$ ,so the slopes are same along each line parallel to the $\"\"$ -axis.

Therefore graph $\"\"$ is the direction of this equation.

$\"\"$

The correct choice is $\"\"$ .