Question

Given the function f (x) = - x^2 + 8x + 9 state whether the vertex represents a maximum or minimum point for the function explain your answer

Answer 1

Vertex will be a maximum.

Explanation:

The leading co-efficient of the equation is a negative.

Answer 2

The vertex will be a maximum because the equation is negative, meaning the parabola opens downwards and will have a maximum point but no minimum point as it will get infinitely smaller.