Problem 3. (1 point) We have two fixed positive numbers K and L. We use these to define a function K f(x) = - x2 + 12 For each of the questions below, your answer could be an expression involving K and L. It is possible that K does not appear or that L does not appear. (A) What are the critical values of f(a ) ? Critical point: (B) There are two inflection points. List the a coordinates of these. (smaller value) (larger value)