Hello there,
In order to find the equation you would need to use the slope intercept form:
Now we plug in and solve for the slope:
  = =
   
Now we plug into y = mx + b to solve for the y-intercept:
- 0 = -
  (0) + b which gives you 0 for the y-intercept (0) + b which gives you 0 for the y-intercept
So the equation would have to be y = 
 +0 or just y =
 +0 or just y = 
 
 
Hope I helped, 
Amna