Answer: (3, 0)
Step-by-step explanation: The x-intercept is a point where a line crosses the x-axis and it's important to understand that all x-intercepts have a y-coordinate of zero. So the point (3, 0) is the x-axis.
In the picture below, I have plotted a few points including the point
in this problem to show you that all x-intercepts have a y-coordinate of zero.