Question

Let f(x)=x^3+Ax^2+Bx-15 be a function whose graph has a minimum at x=2 and a point of inflection at x=3. Find the values of A and B

Answer 1

Take the derivative and the then the second derivative...then set each function to the approapriate value such as the first the derivative must be set to 2 and the second derivative must be set to 3

Answer 2

reply

Answer 3

A=9, b=24?

Answer 4

Umm no because because when you solve for A you are going to come out with a negative number