Simple,
The Y inctercept.
To find the Y intercept we know x=0 because the graph crosses the y axis when x axis is 0 so.
Y=4x-2
Y=4(0)-2
Y=-2 y interecpt is -2
The x intercept.
To find the X intercept we know y=0 because the graph crosses the x axis when y axis is 0 so.
Y=4x-2
0=4x-2
2=4x
2/4 = x x intercept is 2/4 or 0.5