1B: Direct Variation

Front

y varies directly with x, and y is 84 when x is 16. What is the constant of proportionality?

Back

k= 5.25

Front

If $70.00 is earned in 5 hours, how much money is earned in 22 hours of work?

Back

$308

Front

$3.60 for 3 pounds of apples. What is the unit rate?

Back

$1.20 per pound

Front

Which of the given graphs is a direct variation? Options: A, B, C, D

Back

C

Front

What ordered pair does a direct variation always go through when graphed? Options: (0, 0), (1, 0), (0, 1), (1, 1)

Back

(0, 0)

Front

A person’s weekly pay is directly proportional to the number of hours worked. Shawn’s pay is $123.00 for 20 hours of work. What is the constant of variation?

Back

k = 6.15

Front

A person’s weekly pay is directly proportional to the number of hours worked. Shawn’s pay is $123.00 for 20 hours of work. Find the amount of pay for 31 hours of work.

Back

$190.65

Front

A dishwasher uses 65 gallons of water to wash 5 loads of dishes. How many gallons of water would be used to wash 12 loads?

Back

156 gallons

Front

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?

Back

50 kg water