Joint/Combined Variation

The equation 
xy =  25  represents:

• direct variation
• inverse variation
• joint variation
• none of these

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

The equation    
w = 10chs  represents:

• direct variation
• inverse variation
• joint variation
• none of these

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

State what type of variation the equation represents.

• Direct

• Inverse

• Joint

• None

Tags

CCSS.HSA.CED.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

State what type of variation the equation represents.

• Direct

• Inverse

• Joint

• None

Tags

CCSS.HSA.REI.D.10

Y is directly proportional to the square of z and inversely proportional to w and x

• y=kz²/wx
• y=kz/wx
• y=wx/kx²
• y=wx/kz

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

Write an equation for the given relationship:

x varies directly with y and inversely with z.

• x = ayz

• x = ay/z

• x = az/y

• y = ax/z

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.BF.A.1

Write an equation for the given relationship:

w varies inversely with y and jointly with x and z.

• w = az/xy

• w = axzy

• w = (axz)/y

• w = az/y

Tags

CCSS.HSF.BF.A.1

Suppose that x and y vary inversely. Write a function that models each inverse variation if x = 6 when y = 2.

• y = 12 / x

• y = x / 12

• y = 3 / x

• y = x / 3

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

Each ordered pair is from an inverse variation. Find the constant of variation.

(5, 10)

• 50

• 1 / 2

• 2

• 25

Write a function that models for the following situation; z varies jointly with x and y and inversely with w.

• z = (kxy) / w

• z = (xy) / w

• z = (kx) / yw

• z = (k) / xyw

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.BF.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.LE.A.2