If the x-intercept is 4,what could the y-intercept be?
If the x-intercept is 4,what could the y-intercept be ?
$$\text{x-intercept} = -\dfrac{ \text{y-intercept}}{m}\qquad \text{or} \qquad \text{y-intercept} = -4m$$
It could be anything depending on the slope of the line! (I'm assuming you have a straight line in mind).