Question 854017
Set what's inside the || = to 0.  Solve for x.<P>
2x-4 = 0<P>
2x = 4<P>
x = 2<P>
Substitute that x value back into the original equation.  Solve for y.<P>
y =|2(2)-4|<P>
y = |4-4| = |0| = 0<P>
The vertex is (2,0)