Question 1075276
y=(x-4)^2-4
This is moved down 4 and 4 units to the right, the vertex x value is what you get when you set x-4=0, or change the sign of -4 to +4.  The y-value of the vertex is the constant without changing the sign.
(4,-4) is the vertex
Intercepts:
y intercept is when x=0, and that is (0,12)
x-intercept is when y=0, so (x-4)^2=4, x-4=+/-2; x=4+/-2, or (2, 0) and (6, 0)
{{{graph(300,300,-10,10,-10,10,(x-4)^2-4)}}}