Find the equation of the axis of symmetry of the graph of y = (x - 4)^2 - 10.
We have the form y = (x - h)^2 + k
(h , k) is the vertex = (4 , -10)
This is a parabola that opens upward and the axis of symmetry is
x = h
So
x = 4 is the axis of symmetry
