Joint and Combined Variation

Question 1

Step 1: Set up the correct type of variation equation. y =

Revolt · Accepted Answer

kx

Question 2

Which of these statements are true for joint variations? Check all that apply.

Revolt · Accepted Answer

The dependent variable is related to the product of the independent variables by a constant of proportionality, k.; The equation must have at least two independent variables.

Question 3

Step 2: Determine the constant. k =

Revolt · Accepted Answer

2.5

Question 4

Check all the equations that are examples of joint variation.

Revolt · Accepted Answer

Answer image: https://media.edgenuity.com/EVresources/3111-11-05-10-06-task/mr001-1.jpg; Answer image: https://media.edgenuity.com/EVresources/3111-11-05-10-06-task/mr001-3.jpg; Answer image: https://media.edgenuity.com/EVresources/3111-11-05-10-06-task/mr001-5.jpg

Question 5

Step 1: Set up the correct type of variation equation. z =

Revolt · Accepted Answer

kxy

Question 6

Set up the correct type of variation equation.

Revolt · Accepted Answer

Answer image: https://media.edgenuity.com/EVresources/3111-11-05-10-09-task/mc001-3.jpg

Question 7

Which describes the combined variation shown in the equation ?

Revolt · Accepted Answer

F varies directly with x and y, and inversely with z.

Question 8

Which equation represents y varying directly with the cube of x, and inversely with the square root of z?

Revolt · Accepted Answer

Answer image: https://media.edgenuity.com/EVresources/3111-11-05-10-11-task/mc002-2.jpg

Question 9

Step 1: Set up the correct type of variation equation. y =

Revolt · Accepted Answer

kx/z

Question 10

Cooling down, Lars pedals 56 rpms. Which equation shows his speed?

Revolt · Accepted Answer

Answer image: https://media.edgenuity.com/EVresources/3111-11-05-10-15-task/mc001-1.jpg

Joint and Combined Variation Answers

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