To find the x-intercept of the line given by the equation \( y = 6x \), we set \( y \) equal to zero and solve for \( x \).
Setting \( y = 0 \):
\[ 0 = 6x \]
Now, divide both sides by 6:
\[ x = 0 \]
Thus, the x-intercept of the line \( y = 6x \) is \( (0, 0) \).