The vertex of a profit function represents the point at which the maximum profit is achieved. Given the profit function P⁡(x)=−(1)/(4)⁢x^2+6⁢x−8 , find the coordinates of the vertex. The formula to find the x -coordinate of the vertex for a quadratic function a⁢x^2+b⁢x+c is x=−(b)/(2⁢a)