Notes--Page 35--Domain of Radical Functions

If I use the complex number set, what is the square root of -4?

• 2

• 2i

What happens when I divide both sides of an inequality by a negative number?

• Nothing - everything stays the same

• The inequality sign switches

What are the two critical points? (In other words, the values of x when you set each quantity = 0)

• -5 and 3

• 5 and -3

What are the factors of problem c?

• (x - 6)(x + 1)

• (2x + 3) (x - 4)

• (2x - 3) (x + 4)

Which way does the parabola face for problem c?

• up

• down