What is the y-value of the vertex of the function f(x) = –(x + 8)(x – 14)?

we have

Convert to vertex form

we know that

the equation of a vertical parabola in vertex form is equal to

where

(h,k) is the vertex

Group terms that contain the same variable, and move the constant to the opposite side of the equation

Complete the square. Remember to balance the equation by adding the same constants to each side

Rewrite as perfect squares

the vertex is the point

therefore

the answer is

The y-value of the vertex is

angle uzt is congruent to angle tzy. angle vzw is congruent to angle yzx.

(credits to leowren)

step-by-step explanation:

x=half

step-by-step explanation: