Inverse variation

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

• 14
• 10
• 2
• -14

Tags

CCSS.7.EE.B.3

CCSS.7.EE.B.4

x and y vary inversely. Given (5, 20), what is the constant k?

• 4
• 5
• 25
• 100

Tags

CCSS.7.EE.B.3

CCSS.7.EE.B.4

Does the equation show an inverse variation? 
y=10/x

• yes
• no

Tags

CCSS.HSF-LE.A.1B

What kind of variation does this equation show?
y = 6x

• Inverse Variation
• Direct Variation
• No Variation
• Joint Variation

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

CCSS.HSF.LE.A.1

True or False:
Direct Variation passes through the origin of a graph and inverse variation does not.

• True
• False

Tags

CCSS.HSF.IF.B.4

What kind of variation is shown in this graph?

• Inverse
• Direct

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

CCSS.HSS.ID.C.7

Determine the type of variation:

• Direct
• Inverse
• Neither

Tags

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

True or False:
An inverse variation is always a curve and a direct variation is always a line?

• True
• False

Tags

CCSS.HSA.REI.D.10

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

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSF.BF.A.1

If y varies inversely as x, and y = 32 when x = 3, find x when y = 15.

• 3/5

• 8/5

• 16/5

• 32/5

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1