Question

(x)= -x^2-3x+6 find the vertex, axis of symmetry, max or min value, range, interval increasing and decreasing, solve the equation f(x)=0

Answer 1

To find the vertex, put the equation in vertex form by completing the square.

Answer 2

The vertex form of a parabola is: y = a(x - h)^2 + k where (h,k) is the vertex.
So to find the vertex of y = -x^2-3x+6, put it in vertex form by completing the square.