558 Final Exam
- Imagine that we come across two cubic functions, where all the coefficients and
constants are real numbers. We want to solve these functions as a two-by-two system.
What is the minimum number of real solutions that such a system can have?
(a) None.
(b) One.
(c) Two.
(d) Three.
(e) We can’t answer this without more information. - Figure FE-4 shows four mappings. In each case, the maximal domain and the
co-domain are represented by the solid gray regions. Which of these drawings
illustrates the concept of a surjection onto the co-domain?
(a) Drawing A.
(b) Drawing B.
(c) Drawing C.
(d) Drawing D.
(e) None of them.
A B
CD
Figure FE-4 Illustration for Final Exam
Question 52.