So, this equation : 2x + 3y = 12 is in standard form, so lets convert this to the slope intercept form to see the y intercept.
Slope intercept form : y = mx + b
2x + 3y = 12
-2x -2x
3y = -2x + 12
y = -2/3x + 4
Now, we can see the 'b' (aka y intercept) is 4
Answer: (0,4)