How do you find the axis of symmetry, and the maximum or minimum value of the function #f(x)=-4(x+1)^2+1#?
The axis of symmetry of a parabola occurs at its vertex, and if the parabola is not rotated, it is just the vertical line through the vertex.
The vertex is
A parabola has a minimum if
The maximum also occurs at the vertex, so the maximum value of this graph is