The function is linear function of a form,
[tex]f(x)=ax+b[/tex]
Which always intersects point,
[tex]P(x, n)[/tex]
Or in this case,
[tex]f(x)=2x+12[/tex]
The point is therefore,
[tex]P(x,y)\Longrightarrow\boxed{P(x, 12)}[/tex]
The y-intercept is 12.
Hope this helps.
r3t40
