The process that we developed for images of lines in ℝ3 also applies to lines in ℝ2. consider points p(2,3) and
q(−1,4). define a linear transformation by l
xy
= 2
3 −1

xy
find parametric equations to describe the
image of pq under the transformation l.

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