Tbh i only know problem 14.
The x-intercept is on the x-axis.
In coordinate points (x,y).
The two x-intercepts are (-1,0) and (2,0).
To find the x intercept using the equation of the line, plug in 0 for the y variable and solve for x. You can also use the graph of the line to find the x intercept. Just look on the graph for the point where the line crosses the x-axis, which is the horizontal axis. That point is the x intercept.
