We will have to convert this into a slope-intercept form.
First, let's flip the equation
12 = 4y + 3x
Let's now put the 4y outside and 12 inside, we will flip the signs.
4y= 3x+12
We will now divide both sides by 4.
y= [tex] \frac{3}{4}x[/tex]+ 3
Now we can find the y-intercept of the line.
The y-intercept of the line is 3.