MHS Direct Variation A2

Algebra - Lesson Direct Variation

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Multiple Choice

Is the given table a direct variation?

• Yes

• No

Multiple Choice

Is the given table a direct variation?

• Yes

• No

Multiple Choice

Which line is a direct variation?

• Red

• Green

• Purple

• Black

Multiple Choice

$$x=\frac{y}{2}$$  

Is this equation a direct variation? Graph it to make sure.

• Yes

• No

Multiple Choice

$$2=xy$$  

Is this equation a direct variation? Graph it to make sure.

• Yes

• No

Multiple Choice

A car takes 100 feet to stop at 60 mph.

The same car takes 50 feet to stop at 30 mph.

Does this represent a direct variation?

• Yes

• No

Multiple Choice

s varies directly as t, and 𝑠 = 8 when 𝑡 = 16. Then find t when 𝑠 = 16.

• 32

• 8

Multiple Choice

v varies directly as g; and 𝑣 = 21 when 𝑔 = 3. Then find g when 𝑣 = 42.

• 294

• 0.5

• 6

Open Ended

A local fast food restaurant takes in $9000 in a 4 hour period. How many hours it would take the restaurant to earn $20,250.

Open Ended

Heather’s weekly pay varies directly to the number of hours she works at the record store. Her pay is $174 for 24 hours of work. Find the amount of pay for 40 hours of work.

Open Ended

A person’s weekly pay varies directly 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.

Open Ended

A dishwasher uses 65 gallons of water to wash 5 loads of dishes. How many gallons of water would be used to wash 14 loads?

Open Ended

Two minutes after a skydiver opens his parachute, he has descended 1,900 feet. After 5 minutes, he has descended 4,750 feet. If the distance varies directly as the time, at what rate is the skydiver descending?