Question

What is the vertex of a parabola whose equation is y = (x + 7)2?
(-7, 0)
(0, -7)
(0, 7)
(7, 0)

Answer 1

The standard form of a parabola is \(y=a(x-h)^2+k\) where the vertex is \((h,k)\), so
\(y=1(x-(-7))^2+0\) and the vertex is \((-7,0)\) .

Answer 2

i see now ;)