Constant of Variation

Question 1

If y varies directly with x, the constant of variation is .

Revolt · Accepted Answer

C: 5

Question 2

Does the relationship between x and y represent direct or inverse variation? What is the constant of variation?

Revolt · Accepted Answer

B: direct variation; k =

Question 3

A musical instrument has a pitch of 220 hertz when the wavelength is 3 feet. When the wavelength is 4 feet, the pitch is 165 hertz. | What is the type of variation between pitch and wavelength? | What is the pitch when the wavelength is 5 feet? | hertz

Revolt · Accepted Answer

C: inverse variation

Question 4

Boyle’s law states that when considering gases, volume varies inversely with pressure. If V represents the volume of the gas and P represents the pressure of the gas, what would the formula be that represents this relationship? If a balloon has a volume of 4 L of gas with a pressure of 5 atmospheres, what will the volume be when the pressure is 3 atmospheres?

Revolt · Accepted Answer

D: The formula is k = VP, and when P = 3, V = .

Question 5

A =

Revolt · Accepted Answer

A: 0.5

Question 6

The equation representing this relationship is .

Revolt · Accepted Answer

C: y = 5x

Question 7

hertz

Revolt · Accepted Answer

A: 132

Question 8

B =

Revolt · Accepted Answer

C: 4.5

Question 9

Consider the table of values. | If y varies directly with x, the constant of variation is . | The equation representing this relationship is . | What is the value of y when x = 11?

Revolt · Accepted Answer

D: 55

Question 10

C =

Revolt · Accepted Answer

C: 1.5

Constant of Variation Answers

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