An equation in the system is y = x + 1. What is the other equation in the system if the solution is only at (0, 1)?

A. x − y = 1

B. 2x + 2y = 4

C. x + y = 0

D. x + 2y = 2

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit