USING -b/2*a = h , Find the value of h using the formula -b/2*a DO THE MATH

NOW YOU KNOW X = H AND YOU FOUND IT , YOU CAN REPLACE X IN STANDARD FORM EQUATION Y = X^2-4X + 5[br]WHAT IS THE VALUE FOR Y =

AFTER YOU FOUND X AND Y , WHICH IS H AND K, [br]WHAT IS YOUR VERTEX? , USE THE GeoGebra Sliders TOOL TO PLACE THE RED PARABOLA g(x) on top of Black Parabola f(x)

The graph [b][size=200]BELOW [/size][/b] shows the function  [br]𝙛(𝙭)=−𝟭𝟬𝙭^2 +𝟳𝟬𝟬𝙭−𝟲𝟬𝟬𝟬 and [br]shows the profit a company earns for selling headphones at different prices. What is the maximum profit the company can expect to earn?[br][br]Find the Vertex to find the Maximum Profit at the Best Selling Price (Exact Number no Estimating)[br][br][br]