Answer: The slope is 1/2 
Explanation:
When a line passes through the origin the equation of the line will be represented in the form y= kx where k is the slope. 
To to find k you will need to divide both sides by x. 
 y = kx 
y/x = kx/x 
 k = y/x 
This means that to find k, you will need to divide the y coordinate of the point by the x coordinate. 
 k = 3/6 
 K = 1/2