Square Root and Inverse Variation Questions

If x varies inversely as the square root of y, and x = 9 when y = 121, find x when y = 81.

• 7

• 11

• 13

• 17

If y varies inversely as x, and y = 14 when x = 8, find y when x = 7.

• 16

• 20

• 24

• 28

If x varies inversely as y, and x = 3 when y = 8, find y when x = 4.

• 3

• 6

• 9

• 12

Given that y varies inversely with x, if x =7 and y = 4, what is y when x = 2?

• 14

• 10

• 2

• -14

Does the table show an inverse variation?

• Yes

• No

Determine the type of variation:

• Direct

• Inverse

• Neither

The cost per person to rent a mountain cabin is inversely proportional (varies inversely) to the number of people who share the rent. If the cost is $36 per person when 5 people share, what is the cost per person when 8 people share?

• $22.50

• $57.60

• $1.11

• $12.50

What relationship does the table represent?

• Direct

• Inverse

• Neither

If I know the area of a square, how do I find the side length?

• I square the area.

• I divide the area by 2.

• I take the square root of the area.

• I divide the area by 4.

Tags

CCSS.8.EE.A.2

What is the side length of a square that has an area of 36?

• 9

• 18

• 6

• 1296

Tags

CCSS.8.EE.A.2