Question 44: Which of the following statements is true?
+ A. The quadratic function always has an extreme because its derivative is a polynomial of degree 3 .
there is always real experience. So this answer is correct.
+ B. A function of order 3 has at most 2 extremes. So this answer is wrong.
+ C. The quadratic function can only have 1 or 3 extreme points. So this answer is wrong.
+ D. This answer is wrong