4th Week Assessmeent (1st Quarter)

Which of the following depicts a direct variation?

• m = kn

• g = mx + v

• l = k / b

• y = x / k

Is the given table a direct variation? If so, what is the constant of variation?

• Yes; k = 1/3

• Yes; k = 3

• Yes; k = 5

• No

f varies directly with t, and f is 84 when t is 16. Which equation relates f and t?

• f = 1344t

• f = 100t

• f = 5.25t

• f = 4 / 21t

The number of kilograms of water in a person’s body varies directly as the person’s mass. A person with a mass of 90 kg contains 60 kg of water. How many kilograms of water are in a person whose mass is 75 kg?

• 50 kg water

• 72 kg water

• 94 kg water

• 150 kg water

Which of the given graphs is a direct variation?

• A

• B

• C

• D

Is the given table a direct variation? If so, what is the constant?

• Yes; 1/4

• Yes; 4

• Yes; 2

• No

What kind of variation is the given formula?

Fm = 8

• Linear Equation

• Direct Variation

• Inverse Variation

• Joint Variation

Classify the equation:

15p=3q

• Direct Variation

• Inverse Variation

• Joint Variation

• Neither

Is the given table a direct or inverse variation? What is the constant of variation?

• Direct, k = 12

• Inverse, k = 12

• Direct, k = 1/12

• Inverse, k =1/12

The number of hours to paint a house varies inversely with the number of painters working. A 2400-square foot house can be painted in 27 hours by 6 painters. How many painters would need to work in order to paint the house in 18 hours?

• 8 painters

• 10 painters

• 9 painters

• 11 painters