you need to use the point slope form of a line since you have a point and a slope you can do it. Steps are below
recall point slope form of a line is [tex]y - y1 = m(x - x1)[/tex] we plug in a point (6,0) and a slope from our line and get [tex] y - 0 = - 4(x - 6)[/tex] simplify [tex]y = - 4x + 24[/tex] FINAL ANSWER [tex]y \: int = 24[/tex]