Question

What is the vertex of the graph of the following quadratic equation -4(x+7)^2 -5,

Answer 1

vertex=-b/2a
-4(x+7)^2 -5
y=-4(x+7)(x+7)-5
y= -4x^2-56x-201
x=-(-56)/2(-4)
x=7
y=-4(7+7)^2-5
y=-789
(7,-789)