Week 3 HW

Simplify and then subtract:

3√2 - 3√18

• -4√8

• 4√9-6√3

• 5√12

• -6√2

• A
• B
• C
• D

Which of these equations shifts a radical equation left 3 times?

• y = √(x) + 3
• y = √(x) - 3
• y = √(x + 3)
• y = √(x - 3)

Which of the following is the function shown in the graph?

• f(x)= -√(x+4) -2
• f(x)= √(x-4) -2
• f(x)= -√(x-4) -2
• f(x)= √(x+4) +2

What is the domain of the function in this graph?

• x ≤ 3
• x ≥ 3
• x ≤ 0
• x ≥ 0

What is the range of this graph?

• y ≥ -1

• y ≤ -1

• y ≥ 0

• y ≤ 0

Which of the following is the domain shown in the graph?

• [4,∞)

• [-4,∞)

• (4,8)

• [-4,8]

What is the equation of the graph?

• y = √(x + 2) + 3

• y = √(x − 2) + 3

• y = √(x − 3) + 2

• y = √(x + 3) + 2