For the function f(x) = -(x + 1)2 + 4, find the following components of the function and its graph: (be sure to write everything in its proper format interval notation-use infty as needed, point form, or equation)
a) Open
max/min value at
b) Vertex
Axis of symmetry
c) X-intercept(s)
d) y-intercept
e) Domain
1) Range
9) Interval of increase
and interval of decrease