Chapter 9 Prepare and Refresh

• No Solution

• Dividing

• Cubing

• Squaring

• Subtracting

• Multiplying

Question 1

• 10
• 8
• 16
• 4
• 9

The number under the radical sign is called the ______.

• divisor

• radicand
• root

• exponent
• index

Solve the equation $\sqrt{x}=9$  

• x = 81

• x = 9

• x = 3

• x = 18

What would be the first step in solving the equation  $\sqrt{y}+6\ =\ 12$  

• subtract the six from both sides

• add the six to both sides

• take the square root of both sides

• square both sides

What would be the first step in solving the equation  $\sqrt{4x}=8$  

• square both sides of the equation

• take the square root of both sides

• divide both sides by 4

• multiply both sides by 8

Solve the equation  $\sqrt{x}+4\ =\ 10$  

• x = 36

• x = 196

• x = 100

• x = 84