Question 635228
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
y = ax^2 + bx + c   &#8658; y = a(x -(-b/2a)^2) - a(-b/2a)^2 + c
P = -25x^2 + 450x.    |  Note: -450/(2*-25) = 9
P= -25(x-9)^2 + 2025
  9 cleks will maximize the daily profit at $2025