P(X) = -60X2 + 1500X - 4000 - 1 ≤ x ≤ 25
This is the profit function and its domain,
can you please help me find
1) the value of X where there is a breakeven point
2) the value of X where profit be maximum
thankyou so very much!!!
For the maximum, the first derivative of the function is 0. Solve for x, and then plug that x value into the original equation to find P(x) for that value of x. The 2nd derivative test will tell you whether you have a maximum or a minimum. (Although you will have a maximum, since your coefficients of x^2 is negative!)