What is the minimum of the graph described by y = (x+4)^2 - 5

A. (4, 5)
B. (-4, -5)
C. (4, -5)
D. (-4, 5)

1 answer

To find the minimum of the graph described by the equation \( y = (x+4)^2 - 5 \), we can first identify the vertex of the parabola since this is a quadratic function in vertex form.

The vertex form of a quadratic function is given by:

\[ y = a(x-h)^2 + k \]

where \((h, k)\) is the vertex. In your equation, \( a = 1 \), \( h = -4 \), and \( k = -5 \).

Thus, the vertex of the parabola is at the point \((-4, -5)\).

Since the coefficient \( a \) is positive (1), the parabola opens upwards, meaning the vertex is indeed the minimum point on the graph.

Therefore, the minimum of the graph \( y = (x + 4)^2 - 5 \) is at the point:

\[ \boxed{(-4, -5)} \]