Question 926462
The equation R(x) = 3000 +500x -100x2 is a parabola that opens downward, we need to solve for the vertex,
the x coordinate for the vertex is x = -b/2a = -500/-200 = 2.5
substitute for x in our equation
R(x) = 3000 +(500*2.5) -100*(2.5)^2 = 3625 peso's (max revenue)
note that x is peso increase over the Philippine Peso (Php) 4