1. Write the vertex form of the following equation. y = x^2 + 6x − 5

A. y = (x − 3)^2 − 12
B. y = (x + 3)^2 − 14
C. y = (x + 3)^2 − 16
D. y = (x + 3)^2 − 18

2. Suppose a parabola has vertex (6, -3) and also passes through the point (8, 5).
Write the equation of the parabola in vertex form.
A. y = 2(x + 6)^2 − 3
B. y = 8(x + 6)^2 − 3
C. y = 4(x − 6)^2 − 3
D. y = 2(x − 6)^2 − 3

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