Question

What is the vertex of y=-(x-6)(x+4)?

Answer 1

Find vertex of y = (x - 6)(x + 4)

Ans: Vertex (1, -25)

Explanation:

x-coordinate of vertex `x = (x1 + x2)/2 = (6 - 4)/2 = 1`
y-coordinate of vertex --> x = 1 --> `y = (1 - 6)(1 + 4) = -25`