The -intercept of a line represented by a two-variable equation is the point where is the value of when . So your first step is to substitute 0 for in your equation and calculate the resulting value of so that you can determine the point .
Once you have done that, you will have two points on the desired line -- the one you just derived and the given point
Having two points on your desired line you can then use the two-point form of the equation of a line to derive an equation for the desired line.
